TCI (Transmission Configuration Indicator) processing method and device and storage medium

Abstract

The invention provides a TCI (Transmission Configuration Indicator) processing method and device and a storage medium, and relates to the technical field of communication. According to the invention, a medium access control element MAC CE is sent to a terminal device UE, wherein the MAC CE is used for explicitly or implicitly activating or deactivating a TCI of a candidate cell; wherein the explicit mode comprises the following steps: the MAC CE carries indication information for activating or deactivating the TCI of the target candidate cell; the implicit mode comprises the following steps of: activating or deactivating the TCI of a target candidate cell according to a set MAC CE (Media Access Control CE); or, the MAC CE carries the cell identification information of the at least one candidate cell, and is used for activating the TCI of the at least one candidate cell. According to the method and the device, the technical problems of extra requirements on UE performance and extra power consumption of network equipment due to the fact that the TCI in the candidate cell is not supported to be deactivated can be solved.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and in particular, to a method, apparatus, and storage medium for TCI processing. Background Art

[0002] In the L1 / L2 Triggered Mobility (LTM) in R18 (where L1 refers to layer 1 and L2 refers to layer 2), in order to further reduce the LTM handover latency, it is considered to dynamically activate / deactivate the Transmission Configuration Indicator (TCI) of several target candidate cells in advance according to the L1 measurement results. Thus, when a target candidate cell is selected by the network side as the target cell and carried in the LTM handover command, the User Equipment (UE) does not need to re-track, measure, and perform power control on the Reference Signal (RS) associated with the TCI, thereby reducing the interruption latency. However, considering the transient characteristics of the L1 measurement results, the beam of a currently activated candidate cell may become unavailable later, and the network side needs to deactivate some or all of the beams of the candidate cell. Summary of the Invention

[0003] This application provides a method, apparatus, and storage medium for TCI processing, which solves the technical problem of additional requirements for UE performance and additional power consumption of network devices due to the lack of support for deactivating the TCI under candidate cells.

[0004] In a first aspect, this application provides a method for TCI processing, which is applied to a network device. The method for TCI processing includes: sending a Media Access Control Control Element (MAC CE) to a terminal device, where the MAC CE is used to explicitly or implicitly activate or deactivate the Transmission Configuration Indicator (TCI) of a candidate cell; where the explicit method includes: carrying indication information for activating or deactivating the TCI of a target candidate cell in the MAC CE; the implicit method includes: activating or deactivating the TCI of a target candidate cell according to a set MAC CE; or, carrying cell identification information of at least one candidate cell in the MAC CE for activating the TCI of at least one candidate cell.

[0005] In some embodiments, the indication information corresponds to the target candidate cell, and the indication information is used to indicate the activation or deactivation of all TCIs in the MAC CE for the target candidate cell; or, the indication information corresponds to the TCI code point, and the indication information is used to indicate whether the state of the TCI code point corresponding to the indication information is the active state or the deactivated state.

[0006] In some embodiments, if the indication information corresponds to a target candidate cell, the indication information is carried in the idle bit positions in the MAC CE; if the indication information corresponds to a TCI code point, the indication information is carried in N consecutive idle bit positions in the MAC CE, and the value of N depends on the number of TCI code points indicated in the MAC CE.

[0007] In some embodiments, the types of TCI code points include uplink TCI code points, downlink TCI code points, or combined TCI code points.

[0008] In some embodiments, the order in which the indication information appears in N consecutive idle bit positions in the MAC CE is the same as the order in which the corresponding uplink TCI code point, downlink TCI code point, or combined TCI code point appears.

[0009] In some embodiments, the value of the indication information for activation is different from the value of the indication information for deactivation.

[0010] In some embodiments, the set MAC CE includes: indicating in the sub-header of the MAC CE that the length of the MAC CE is a set length, and the length of the MAC CE corresponds to the set length.

[0011] In some embodiments, the set length is 2 bytes or 1 byte.

[0012] In some embodiments, if the MAC CE does not contain TCI status indication information, the MAC CE is used to deactivate all TCIs in the MAC CE for the target candidate cell.

[0013] In some embodiments, when the cell identification information of at least one candidate cell is carried in the MAC CE, it further includes at least one of the following: at least one TCI code point corresponding to the cell identification information of each candidate cell, and one TCI code point corresponds to the status indication information of an uplink TCI, the status indication information of a downlink TCI, or the status indication information of a combined TCI; the status indication information of the TCI corresponding to the TCI code point carried in a separate control field, and the status indication information indicates the number of TCIs corresponding to the TCI code point, or indicates the TCI mode corresponding to the TCI code point, and the TCI mode includes an uplink and downlink combined mode or an uplink and downlink separate mode; for the case of separately indicating the status of the uplink TCI and the status of the downlink TCI, the status indication information of the TCI corresponding to the TCI code point carried in a separate indication field, and the status indication information is the status indication information of the uplink TCI or the status indication information of the downlink TCI.

[0014] Second aspect, the present application provides a TCI processing method applied to a terminal device. The TCI processing method includes: receiving a MAC CE from a network device, where the MAC CE is used to explicitly or implicitly activate or deactivate the TCI of a candidate cell; activating or deactivating the TCI of the candidate cell according to the MAC CE; where the explicit method includes: the MAC CE carries indication information for activating or deactivating the TCI of a target candidate cell; the implicit method includes: activating or deactivating the TCI of a target candidate cell according to a set MAC CE; or, the MAC CE carries cell identification information of at least one candidate cell for activating the TCI of at least one candidate cell.

[0015] In some embodiments, the indication information corresponds to the target candidate cell. The indication information corresponds to the target candidate cell. The indication information is used to indicate activating or deactivating all the TCIs in the MAC CE for the target candidate cell, or the indication information is used to indicate activating or deactivating the TCI corresponding to the identification information of the TCI carried in the MAC CE for the target candidate cell.

[0016] In some embodiments, the indication information corresponds to a TCI code point, and the indication information is used to indicate activating or deactivating the TCI corresponding to the TCI code point.

[0017] In some embodiments, the types of TCI code points include uplink TCI code points, downlink TCI code points, or combined TCI code points.

[0018] In some embodiments, if the indication information corresponds to a TCI code point, the indication information is carried in N consecutive idle bit positions in the MAC CE; where the value of N depends on the number of TCI code points indicated in the MAC CE; or, the maximum value of N is 8 or 16.

[0019] In some embodiments, the order of appearance of the indication information in N consecutive idle bit positions in the MAC CE is the same as the order of appearance of the corresponding uplink TCI code point, downlink TCI code point, or combined TCI code point, and the indication information is used to indicate that the state of the TCI code point corresponding to the indication information is an active state or a deactivated state.

[0020] In some embodiments, the value of the indication information for activation is different from the value of the indication information for deactivation.

[0021] In some embodiments, the set MAC CE includes: the sub-header of the MAC CE indicates that the length of the MAC CE is a set length, and the length of the MAC CE corresponds to the set length.

[0022] In some embodiments, the set length is 2 bytes or 1 byte.

[0023] In some embodiments, if the MAC CE does not contain the status identification information of the TCI, the MAC CE is used to deactivate all the TCIs in the MAC CE for the target candidate cell.

[0024] In some embodiments, if the MAC CE only contains the identification information of the logical channel, the MAC CE is used to deactivate the TCI of the candidate cell corresponding to the identification information of the logical channel.

[0025] In some embodiments, when the cell identification information of at least one candidate cell is carried in the MAC CE, it further includes at least one of the following: at least one TCI code point corresponding to the cell identification information of each candidate cell, one TCI code point corresponding to the status identification information of the uplink TCI, the status identification information of the downlink TCI, or the status identification information of the combined TCI; the status identification information of the TCI corresponding to the TCI code point carried in the separate control domain, the status identification information indicating the number of TCIs corresponding to the TCI code point, or indicating the TCI mode corresponding to the TCI code point, the TCI mode including the uplink and downlink combined mode, or the uplink and downlink separate mode; for the case of separately indicating the status of the uplink TCI and the status of the downlink TCI, the status identification information of the TCI corresponding to the TCI code point carried in the separate indication domain, the status identification information being the status identification information of the uplink TCI or the status identification information of the downlink TCI.

[0026] In some embodiments, the status of the TCI corresponding to the cell identification information carried in the MAC CE received at the first moment is the active state, and the first moment is the latest moment when the MAC CE is received.

[0027] In some embodiments, if the MAC CE is received at the second moment, and the cell identification information carried in the MAC CE is not included in the cell identification information carried in the MAC CE received at the first moment, then the status of the TCI corresponding to the cell identification information carried in the MAC CE received at the second moment is the deactivated state, where the second moment is before the first moment; and / or; if the cell identification information carried in the MAC CE received at the second moment is the same as the cell identification information carried in the MAC CE received at the first moment, and the TCIs corresponding to the same cell identification information are the same, then the status of the same TCI corresponding to the same cell identification information is the active state.

[0028] In a third aspect, the present application provides a TCI processing apparatus applied to a network device. The TCI processing apparatus includes: a sending module configured to send a MAC CE to a terminal device, where the MAC CE is used to explicitly or implicitly activate or deactivate the TCI of a candidate cell; wherein, the explicit manner includes: carrying indication information for activating or deactivating the TCI of a target candidate cell in the MAC CE; the implicit manner includes: activating or deactivating the TCI of a target candidate cell according to a set MAC CE; or, carrying cell identification information of at least one candidate cell in the MAC CE for activating the TCI of at least one candidate cell.

[0029] In some embodiments, the indication information corresponds to the target candidate cell, and the indication information is used to indicate activation or deactivation of all TCIs in the MAC CE for the target candidate cell; or, the indication information corresponds to a TCI code point, and the indication information is used to indicate that the state of the TCI code point corresponding to the indication information is an active state or a deactivated state.

[0030] In some embodiments, if the indication information corresponds to the target candidate cell, the indication information is carried in the idle bit positions in the MAC CE; if the indication information corresponds to a TCI code point, the indication information is carried in N consecutive idle bit positions in the MAC CE, and the value of N depends on the number of TCI code points indicated in the MAC CE.

[0031] In some embodiments, the types of TCI code points include uplink TCI code points, downlink TCI code points, or combined TCI code points.

[0032] In some embodiments, the order in which the indication information appears in N consecutive idle bit positions in the MAC CE is the same as the order in which the corresponding uplink TCI code point, downlink TCI code point, or combined TCI code point appears.

[0033] In some embodiments, the value of the indication information for activation is different from the value of the indication information for deactivation.

[0034] In some embodiments, the set MAC CE includes: indicating in the sub-header of the MAC CE that the length of the MAC CE is a set length, and the length of the MAC CE corresponds to the set length.

[0035] In some embodiments, the set length is 2 bytes or 1 byte.

[0036] In some embodiments, if the MAC CE does not contain status identification information of the TCI, the MAC CE is used to deactivate all TCIs in the MAC CE for the target candidate cell.

[0037] In some embodiments, when the cell identification information of at least one candidate cell is carried in the MAC CE, it further includes at least one of the following: at least one TCI code point corresponding to the cell identification information of each candidate cell, where one TCI code point corresponds to the status identification information of an uplink TCI, the status identification information of a downlink TCI, or the status identification information of a combined TCI; the status identification information of the TCI corresponding to the TCI code point carried in a separate control field, where the status identification information indicates the number of TCIs corresponding to the TCI code point, or indicates the TCI mode corresponding to the TCI code point, and the TCI mode includes an uplink-downlink combined mode or an uplink-downlink separate mode; for the case of separately indicating the status of the uplink TCI and the status of the downlink TCI, the status identification information of the TCI corresponding to the TCI code point carried in a separate indication field, and the status identification information is the status identification information of the uplink TCI or the status identification information of the downlink TCI.

[0038] In a fourth aspect, the present application provides a TCI processing apparatus, which is applied to a terminal device. The TCI processing apparatus includes: a receiving module, configured to receive a MAC CE from a network device, where the MAC CE is used to explicitly or implicitly activate or deactivate the TCI of a candidate cell; a processing module, configured to activate or deactivate the TCI of the candidate cell according to the MAC CE; where the explicit manner includes: carrying indication information for activating or deactivating the TCI of a target candidate cell in the MAC CE; the implicit manner includes: activating or deactivating the TCI of the target candidate cell according to a set MAC CE; or, carrying the cell identification information of at least one candidate cell in the MAC CE for activating the TCI of at least one candidate cell.

[0039] In some embodiments, the indication information corresponds to the target candidate cell, and the indication information is used to indicate activating or deactivating all TCIs in the MAC CE for the target candidate cell, or the indication information is used to indicate activating or deactivating the TCI corresponding to the identification information of the TCI carried in the MAC CE for the target candidate cell.

[0040] In some embodiments, the indication information corresponds to the TCI code point, and the indication information is used to indicate activating or deactivating the TCI corresponding to the TCI code point.

[0041] In some embodiments, the type of the TCI code point includes an uplink TCI code point, a downlink TCI code point, or a combined TCI code point.

[0042] In some embodiments, if the indication information corresponds to the TCI code point, the indication information is carried in N consecutive idle bit positions in the MAC CE; where the value of N depends on the number of TCI code points indicated in the MAC CE; or, the maximum value of N is 8 or 16.

[0043] In some embodiments, the order in which the indication information appears in N consecutive idle bits in the MAC CE is the same as the order in which the corresponding uplink TCI code point, downlink TCI code point, or combined TCI code point appears, and the indication information is used to indicate whether the state of the TCI code point corresponding to the indication information is an active state or a deactivated state.

[0044] In some embodiments, the value of the indication information for activation is different from the value of the indication information for deactivation.

[0045] In some embodiments, the set MAC CE includes: indicating in the sub-header of the MAC CE that the length of the MAC CE is a set length, and the length of the MAC CE corresponds to the set length.

[0046] In some embodiments, the set length is 2 bytes or 1 byte.

[0047] In some embodiments, if the MAC CE does not contain the status identification information of the TCI, the MAC CE is used to deactivate all TCIs in the MAC CE for the target candidate cell.

[0048] In some embodiments, if the MAC CE only contains the identification information of the logical channel, the MAC CE is used to deactivate the TCI of the candidate cell corresponding to the identification information of the logical channel.

[0049] In some embodiments, when the cell identification information of at least one candidate cell is carried in the MAC CE, it further includes at least one of the following: at least one TCI code point corresponding to the cell identification information of each candidate cell, and one TCI code point corresponds to the status identification information of an uplink TCI, downlink TCI, or combined TCI; the status identification information of the TCI corresponding to the TCI code point carried in a separate control domain, and the status identification information indicates the number of TCIs corresponding to the TCI code point, or indicates the TCI mode corresponding to the TCI code point, and the TCI mode includes an uplink and downlink combined mode or an uplink and downlink separate mode; for the case of separately indicating the status of the uplink TCI and the status of the downlink TCI, the status identification information of the TCI corresponding to the TCI code point carried in a separate indication domain, and the status identification information is the status identification information of the uplink TCI or the status identification information of the downlink TCI.

[0050] In some embodiments, the state of the TCI corresponding to the cell identification information carried in the MAC CE received at the first moment is an active state, and the first moment is the latest moment when the MAC CE is received.

[0051] In some embodiments, if a MAC CE is received at a second moment, and the cell identification information carried in the MAC CE is not included in the cell identification information carried in the MAC CE received at a first moment, the state of the TCI corresponding to the cell identification information carried in the MAC CE received at the second moment is the deactivated state, where the second moment is before the first moment; and / or; if the cell identification information carried in the MAC CE received at the second moment is the same as the cell identification information carried in the MAC CE received at the first moment, and the TCIs corresponding to the same cell identification information are the same, the state of the same TCI corresponding to the same cell identification information is the activated state.

[0052] In a fifth aspect, the present application further provides a TCI processing device, including: a memory, a transceiver, and a processor: the memory is used for storing computer programs; the transceiver is used for transceiving data under the control of the processor; the processor is used for reading the computer programs in the memory and performing the following operations: sending a MAC CE to a terminal device, where the MAC CE is used to explicitly or implicitly activate or deactivate the TCI of a candidate cell; where the explicit method includes: the MAC CE carries indication information for activating or deactivating the TCI of a target candidate cell; the implicit method includes: activating or deactivating the TCI of a target candidate cell according to a set MAC CE; or, the MAC CE carries the cell identification information of at least one candidate cell for activating the TCI of at least one candidate cell.

[0053] In some embodiments, the indication information corresponds to a target candidate cell, and the indication information is used to indicate the activation or deactivation of all TCIs in the MAC CE for the target candidate cell; or, the indication information corresponds to a TCI code point, and the indication information is used to indicate that the state of the TCI code point corresponding to the indication information is the activated state or the deactivated state.

[0054] In some embodiments, if the indication information corresponds to a target candidate cell, the indication information is carried in the idle bit positions in the MAC CE; if the indication information corresponds to a TCI code point, the indication information is carried in N consecutive idle bit positions in the MAC CE, and the value of N depends on the number of TCI code points indicated in the MAC CE.

[0055] In some embodiments, the types of TCI code points include uplink TCI code points, downlink TCI code points, or combined TCI code points.

[0056] In some embodiments, the order of appearance of the indication information in N consecutive idle bit positions in the MAC CE is the same as the order of appearance of the corresponding uplink TCI code point, downlink TCI code point, or combined TCI code point.

[0057] In some embodiments, the value of the indication information for activation is different from the value of the indication information for deactivation.

[0058] In some embodiments, the set MAC CE includes: indicating in the sub - header of the MAC CE that the length of the MAC CE is a set length, and the length of the MAC CE corresponding to the set length.

[0059] In some embodiments, the set length is 2 bytes or 1 byte.

[0060] In some embodiments, if the MAC CE does not contain the status indication information of the TCI, the MAC CE is used to deactivate all TCIs in the MAC CE for the target candidate cell.

[0061] In some embodiments, when the MAC CE carries the cell identification information of at least one candidate cell, it further includes at least one of the following: at least one TCI code point corresponding to the cell identification information of each candidate cell, one TCI code point corresponding to the status indication information of an uplink TCI, a downlink TCI, or a combined TCI; the status indication information of the TCI corresponding to the TCI code point carried in a separate control field, the status indication information indicating the number of TCIs corresponding to the TCI code point, or indicating the TCI mode corresponding to the TCI code point, the TCI mode including an uplink - downlink combined mode or an uplink - downlink separate mode; for the case of separately indicating the status of the uplink TCI and the status of the downlink TCI, the status indication information of the TCI corresponding to the TCI code point carried in a separate indication field, the status indication information being the status indication information of the uplink TCI or the status indication information of the downlink TCI.

[0062] In a sixth aspect, the present application further provides a TCI processing device, including: a memory, a transceiver, and a processor: the memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer programs in the memory and perform the following operations: receive a MAC CE from a network device, the MAC CE being used to explicitly or implicitly activate or deactivate the TCI of a candidate cell; activate or deactivate the TCI of the candidate cell according to the MAC CE; where the explicit method includes: carrying in the MAC CE the indication information for activating or deactivating the TCI of the target candidate cell; the implicit method includes: activating or deactivating the TCI of the target candidate cell according to the set MAC CE; or, carrying in the MAC CE the cell identification information of at least one candidate cell for activating the TCI of at least one candidate cell.

[0063] In some embodiments, the indication information corresponds to a target candidate cell, and the indication information is used to indicate the activation or deactivation of all TCIs for the target candidate cell in the MAC CE, or the indication information is used to indicate the activation or deactivation of the TCI corresponding to the identification information of the TCI carried in the MAC CE for the target candidate cell.

[0064] In some embodiments, the indication information corresponds to a TCI code point, and the indication information is used to indicate the activation or deactivation of the TCI corresponding to the TCI code point.

[0065] In some embodiments, the types of TCI code points include uplink TCI code points, downlink TCI code points, or combined TCI code points.

[0066] In some embodiments, if the indication information corresponds to a TCI code point, the indication information is carried in N consecutive idle bit positions in the MAC CE; wherein, the value of N depends on the number of TCI code points indicated in the MAC CE; or, the maximum value of N is 8 or 16.

[0067] In some embodiments, the order in which the indication information appears in N consecutive idle bit positions in the MAC CE is the same as the order in which the corresponding uplink TCI code point, downlink TCI code point, or combined TCI code point appears, and the indication information is used to indicate whether the state of the TCI code point corresponding to the indication information is the active state or the deactivated state.

[0068] In some embodiments, the value of the indication information for activation is different from the value of the indication information for deactivation.

[0069] In some embodiments, the set MAC CE includes: indicating in the sub-header of the MAC CE that the length of the MAC CE is a set length, and the length of the MAC CE corresponds to the set length.

[0070] In some embodiments, the set length is 2 bytes or 1 byte.

[0071] In some embodiments, if the MAC CE does not contain the status identification information of the TCI, the MAC CE is used to deactivate all TCIs for the target candidate cell in the MAC CE.

[0072] In some embodiments, if the MAC CE only contains the identification information of the logical channel, the MAC CE is used to deactivate the TCI of the candidate cell corresponding to the identification information of the logical channel.

[0073] In some embodiments, when cell identity information of at least one candidate cell is carried in the MAC CE, it further includes at least one of the following: at least one TCI code point corresponding to the cell identity information of each candidate cell, where one TCI code point corresponds to the status identification information of an uplink TCI, the status identification information of a downlink TCI, or the status identification information of a combined TCI; the status identification information of the TCI corresponding to the TCI code point carried in a separate control field, where the status identification information indicates the number of TCIs corresponding to the TCI code point or indicates the TCI mode corresponding to the TCI code point, and the TCI mode includes an uplink-downlink combined mode or an uplink-downlink separate mode; for the case of separately indicating the status of the uplink TCI and the status of the downlink TCI, the status identification information of the TCI corresponding to the TCI code point carried in a separate indication field, and the status identification information is the status identification information of the uplink TCI or the status identification information of the downlink TCI.

[0074] In some embodiments, the status of the TCI corresponding to the cell identity information carried in the MAC CE received at the first moment is the active state, and the first moment is the latest moment when the MAC CE is received.

[0075] In some embodiments, if the MAC CE is received at the second moment, and the cell identity information carried in the MAC CE is not included in the cell identity information carried in the MAC CE received at the first moment, then the status of the TCI corresponding to the cell identity information carried in the MAC CE received at the second moment is the deactivated state, where the second moment is before the first moment; and / or; if the cell identity information carried in the MAC CE received at the second moment is the same as the cell identity information carried in the MAC CE received at the first moment, and the TCIs corresponding to the same cell identity information are the same, then the status of the same TCI corresponding to the same cell identity information is the active state.

[0076] In a seventh aspect, the present application further provides a non-transitory readable storage medium storing a computer program for causing a processor to execute the above-mentioned TCI processing method.

[0077] The TCI processing method, apparatus, device, and storage medium provided by this application. The TCI processing method includes: sending a MAC CE to a terminal device, where the MAC CE is used to explicitly or implicitly activate or deactivate the TCI of a candidate cell; among them, the explicit method includes: carrying indication information for activating or deactivating the TCI of a target candidate cell in the MAC CE; the implicit method includes: activating or deactivating the TCI of a target candidate cell according to a set MAC CE; or, carrying cell identification information of at least one candidate cell in the MAC CE, which is used to activate the TCI of at least one candidate cell. In this application, the MAC CE is used to explicitly or implicitly activate or deactivate the TCI of a candidate cell. After the network device sends the MAC CE to the terminal device, the terminal device can activate or deactivate the TCI that appears in the MAC CE dynamically according to the MAC CE. In addition, the MAC CE may not carry the identification information of the candidate cell, but only carry the identification information of the logical channel, so as to dynamically activate the TCI of the candidate cell corresponding to the identification information of the logical channel. Therefore, the additional requirements for UE performance and the additional power consumption of the network device can be reduced.

[0078] It should be understood that the content described in the above invention content section is not intended to limit the key or important features of the embodiments of the present invention, nor is it used to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0079] In order to more clearly illustrate the technical solutions in this application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0080] Figure 1 It is a schematic flowchart of a TCI processing method provided by an embodiment of this application;

[0081] Figure 2 It is a schematic diagram of a MAC CE provided by an embodiment of this application;

[0082] Figure 3 It is a schematic diagram of another MAC CE provided by an embodiment of this application;

[0083] Figure 4 It is a schematic diagram of a sub-header of a MAC CE provided by an embodiment of this application;

[0084] Figure 5 It is a schematic diagram of a MAC CE with a length of 2 bytes provided by an embodiment of this application;

[0085] Figure 6 Schematic diagram of a MAC CE with a length of 1 byte provided by an embodiment of the present application;

[0086] Figure 7 Another schematic diagram of a MAC CE provided by an embodiment of the present application;

[0087] Figure 8 Schematic flowchart of another TCI processing method provided by an embodiment of the present application;

[0088] Figure 9 Schematic flowchart of another TCI processing method provided by an embodiment of the present application;

[0089] Figure 10 Schematic flowchart of yet another TCI processing method provided by an embodiment of the present application;

[0090] Figure 11 Schematic flowchart of yet another TCI processing method provided by an embodiment of the present application;

[0091] Figure 12 Schematic flowchart of yet another TCI processing method provided by an embodiment of the present application;

[0092] Figure 13 Schematic flowchart of yet another TCI processing method provided by an embodiment of the present application;

[0093] Figure 14 Schematic flowchart of yet another TCI processing method provided by an embodiment of the present application;

[0094] Figure 15 Schematic diagram of a structure of a TCI processing device provided by an embodiment of the present application;

[0095] Figure 16 Schematic diagram of a structure of a TCI processing device provided by an embodiment of the present application;

[0096] Figure 17 Schematic diagram of a structure of a TCI processing device provided by an embodiment of the present application;

[0097] Figure 18 Schematic diagram of a structure of a TCI processing device provided by an embodiment of the present application. Detailed implementation manners

[0098] In the embodiments of the present invention, the term "and / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0099] In the embodiments of the present application, the term "plurality" means two or more, and other quantifiers are similar thereto.

[0100] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0101] The inventors found in the research that R18 supports the cell change mechanism based on L1 / L2 commands. The cell change mechanism based on L1 / L2 commands aims to achieve a faster process than that based on L3 commands. At the same time, the cell change mechanism based on L1 / L2 commands is not limited to handover and Primary Secondary Cell (PSCell) change, and can also be applied to SCell. To support the mobility based on L1 / L2 commands, the serving cell pre-configures the configuration information of the candidate cell to the UE in advance through the Radio Resource Control (RRC) message. The UE performs L1 measurement on the neighboring cell according to the received configuration and reports it to the serving cell. The serving cell makes a handover decision based on the measurement report. Before that, the serving cell can also trigger the UE to perform the Timing Advance (TA) acquisition of the target cell, acquire the TA in advance, and carry the obtained valid TA value in the L1 / L2 cell change command to the UE to achieve the RACH-less cell change process and shorten the interruption delay.

[0102] In R18 LTM, in order to further reduce the LTM handover delay, it is considered to dynamically activate / deactivate the TCIs of several candidate cells in advance according to the L1 measurement results. So that when the candidate cell is selected by the network device as the target cell and carried in the LTM handover command, the UE does not need to re-track, measure, and perform power control on the RS associated with the TCI, etc., thus reducing the interruption delay. However, considering the transient characteristics of the L1 measurement results, the beam of a currently activated candidate cell may become unavailable later, and the network device needs to deactivate some or all of the beams of the candidate cell. However, in the current mechanism, for a certain candidate cell, activating the TCI of the candidate cell is supported, but deactivating all TCI states of the candidate cell is not supported. This will result in that even if the candidate cell is not suitable as the target cell, the UE still needs to measure at least a certain TCI reference signal of the candidate cell. Therefore, it will result in additional requirements for UE performance and additional power consumption of the network device.

[0103] The embodiments of this application provide a TCI processing method, device, and storage medium. The network device can send a medium access control (MAC) control element (CE) for explicitly or implicitly activating or deactivating the TCI of a candidate cell to the terminal device. Among them, the explicit method includes: carrying indication information for activating or deactivating the TCI of the target candidate cell in the MAC CE; the implicit method includes: activating or deactivating the TCI of the target candidate cell according to the set MAC CE; or, carrying the cell identification information of at least one candidate cell in the MAC CE for activating the TCI of at least one candidate cell. In this way, after receiving the MAC CE, the terminal device can dynamically activate or deactivate the TCI appearing in the MAC CE according to the MAC CE. In addition, the MAC CE may not carry the identification information of the candidate cell, but only carry the identification information of the logical channel, so as to dynamically activate the TCI of the candidate cell corresponding to the identification information of the logical channel. Therefore, the additional requirements for UE performance and the additional power consumption of the network device can be reduced.

[0104] Among them, the method and the device are based on the same inventive concept. Since the principles of the method and the device for solving problems are similar, the implementation of the device and the method can be referred to each other, and the repeated parts will not be elaborated.

[0105] The technical solutions provided by the embodiments of the present application can be applicable to a variety of systems. For example, the applicable systems can be Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD) systems, Long Term Evolution Advanced (LTE-A) systems, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) systems, 5G New Radio (NR) systems and their evolved communication systems, etc. These various systems may include terminal devices and network devices. The systems may also include a core network part, such as an Evolved Packet System (EPS), a 5G System (5GS), etc.

[0106] The terminal device involved in the embodiments of the present application may be a device that provides voice and / or data connectivity to users, such as a handheld device with wireless connection capabilities, or other processing devices connected to a wireless modem, etc. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device may be called a UE. The wireless terminal device may be a USB storage device, other personal computer memory devices, and dongles. It can also communicate with one or more core networks (abbreviated as CN) via a radio access network (RAN). The wireless terminal device may be a mobile terminal device, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal device. For example, it can be a portable, pocket-sized, handheld, computer-integrated, or vehicle-mounted mobile device that exchanges voice and / or data with the radio access network. For example, personal communication service (PCS) phones, cordless phones, session initiated protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), personal computers, tablet computers, machine-type communication (MTC) terminal devices, and other devices. The wireless terminal device may also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile, remote station, access point, remote terminal, access terminal, user terminal, user agent, user device, and wireless access points and routers / modems that meet the limitations of this definition, which are not limited in the embodiments of the present application.

[0107] The network device involved in the embodiments of the present application may be a base station, which may include multiple cells that provide services to terminals. Depending on the specific application scenarios, the base station may also be referred to as an access point, or may be a device in the access network that communicates with wireless terminal devices through one or more sectors over the air interface, or other names. The network device can be used to mutually replace the received air frames and Internet Protocol (IP) packets, and act as a router between the wireless terminal device and the rest of the access network, where the rest of the access network may include an IP communication network. The network device can also coordinate the management of the attributes of the air interface. For example, the network device involved in the embodiments of the present application may be an evolved network device (evolutional Node B, abbreviated as: eNB or e-NodeB) in an LTE system, a 5G base station (gNB) in a 5G network architecture (next generation system), etc., or may also be a Home evolved Node B (HeNB), a relay node, a femto, a pico, a network test device, etc. The embodiments of the present application do not limit this. In some network architectures, the network device may include a centralized unit (centralized unit, abbreviated as: CU) node and a distributed unit (distributed unit, abbreviated as: DU) node, and the centralized unit and the distributed unit may also be geographically separated.

[0108] The network device and the terminal device can each use one or more antennas for multi-input multi-output MIMO transmission, and the MIMO transmission can be single-user MIMO or multi-user MIMO. According to the form and quantity of the root antenna combination, the MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or can also be diversity transmission, precoding transmission, beamforming transmission, etc.

[0109] In the embodiments of the present application, the terminal device sends relevant information or similar descriptions to the network device, which only indicates the relevant information sent by the terminal device in the form of a wireless signal, and the intended recipient is the network device, and the network device can obtain the relevant information by receiving the wireless signal.

[0110] In some embodiments, a TCI processing method is provided, which is applied to a network device. Figure 1 As shown in Figure 1 the flowchart of a TCI processing method provided for the embodiments of the present application, the method mainly includes the following steps:

[0111] S101: Send a MAC CE to the terminal device.

[0112] In this step, the MAC CE is used to explicitly or implicitly activate or deactivate the TCI of the candidate cell.

[0113] In the TCI processing method provided by the embodiments of this application, the MAC CE is used to explicitly or implicitly activate or deactivate the TCI of the candidate cell. After the network device sends the MAC CE to the terminal device, the terminal device can, according to the MAC CE, dynamically activate or deactivate the TCI appearing in the MAC CE, thereby reducing the additional requirements for UE performance and the additional power consumption of the network device.

[0114] In some embodiments, the manner of indication includes: carrying, in the MAC CE, indication information for activating the TCI of the target candidate cell.

[0115] Optionally, the MAC CE sent by the network device to the terminal device carries indication information for activating the TCI of the target candidate cell. After receiving the MAC CE, the terminal device can activate the TCI for the target candidate cell in the MAC CE according to the indication information.

[0116] In some embodiments, the manner of indication includes: carrying, in the MAC CE, indication information for deactivating the TCI of the target candidate cell.

[0117] Optionally, the MAC CE sent by the network device to the terminal device carries indication information for deactivating the TCI of the target candidate cell. After receiving the MAC CE, the terminal device can deactivate the TCI for the target candidate cell in the MAC CE according to the indication information.

[0118] For example, if the indication information corresponds to the target candidate cell, when the value of the indication information is 0, the terminal device considers that all the TCIs for the target candidate cell appearing in the MAC CE are in the deactivated state, so the terminal device deactivates all the TCIs appearing in the MAC CE. When the value of the indication information is 1, the terminal device considers that all the TCIs for the target candidate cell appearing in the MAC CE are in the activated state, so the terminal device activates all the TCIs appearing in the MAC CE.

[0119] For another example, if the indication information corresponds to the TCI code point, when the value of the indication information is 0, the terminal device considers that the TCI corresponding to the TCI code point is in the deactivated state, so the terminal device deactivates the TCI corresponding to the TCI code point. When the value of the indication information is 1, the terminal device considers that the TCI corresponding to the TCI code point is in the activated state, so the terminal device activates the TCI corresponding to the TCI code point.

[0120] In some embodiments, the implicitly adopted manner includes: activating the TCI of the target candidate cell according to the set MAC CE.

[0121] Optionally, the network device sends the MAC CE to the terminal device. When the terminal device determines that the MAC CE is the set MAC CE, it activates the TCI in the MAC CE for the target candidate cell.

[0122] For example, if the network device and the terminal device protocol stipulate that the MAC CE of a set length is used to indicate the activation of the TCI in the MAC CE for the target candidate cell, then after receiving the MAC CE, if the subheader of the MAC CE indicates that the MAC CE length is the set length and the MAC CE length corresponds to the set length, the terminal device activates the TCI in the MAC CE for the target candidate cell; if the subheader of the MAC CE indicates that the MAC CE length is the set length but the MAC CE length is not the set length, the terminal device does not activate the TCI in the MAC CE for the target candidate cell.

[0123] In some embodiments, the implicitly adopted manner includes: deactivating the TCI of the target candidate cell according to the set MAC CE.

[0124] Optionally, the network device sends the MAC CE to the terminal device. When the terminal device determines that the MAC CE is the set MAC CE, it deactivates the TCI in the MAC CE for the target candidate cell.

[0125] For example, if the network device and the terminal device protocol stipulate that the MAC CE of a set length is used to indicate the deactivation of the TCI in the MAC CE for the target candidate cell, then after receiving the MAC CE, if the subheader of the MAC CE indicates that the MAC CE length is the set length and the MAC CE length corresponds to the set length, the terminal device deactivates the TCI in the MAC CE for the target candidate cell; if the subheader of the MAC CE indicates that the MAC CE length is the set length but the MAC CE length is not the set length, the terminal device does not deactivate the TCI in the MAC CE for the target candidate cell.

[0126] For another example, if the MAC CE does not contain the status identification information of the TCI, then after receiving the MAC CE, the terminal device deactivates all the TCIs in the MAC CE for the target candidate cell.

[0127] In some embodiments, the implicitly adopted manner includes: carrying cell identification information of at least one candidate cell in a MAC CE for activating the TCI of at least one candidate cell.

[0128] Optionally, if the cell identification information of at least one candidate cell is carried in the MAC CE sent by the network device to the terminal device, then when receiving the MAC CE, the terminal device may activate the TCI of at least one candidate cell.

[0129] For example, due to factors such as movement and occlusion of the terminal device, in order to ensure the signal quality of the SSB with a strong TCI, it is necessary to switch the target cell and beam. Therefore, the network device monitors in real time whether the TCI corresponding to a certain or certain candidate cells in the MAC CE sent to the terminal device is appropriate. If it is not appropriate, the network device needs to send a new MAC CE to the terminal device. Thus, the terminal device needs to take the latest received MAC CE as the standard and activate the TCI corresponding to the cell identification information carried in the latest received MAC CE.

[0130] The terminal device receives two MAC CEs, and each received MAC CE carries cell identification information of at least one candidate cell. Then the terminal device takes the latest received MAC CE as the standard and activates the TCI of at least one candidate cell corresponding to the latest received MAC CE. If the terminal device receives a MAC CE at the second moment, and the cell identification information carried in the MAC CE received at the second moment is not included in the cell identification information carried in the MAC CE received at the first moment (the latest moment of receiving the MAC CE), it is considered that the TCI corresponding to a certain or certain candidate cells in the MAC CE received at the second moment is not appropriate. Therefore, taking the latest received MAC CE as the standard, activate the TCI corresponding to the cell identification information carried in the latest received MAC CE, and deactivate the TCI corresponding to the cell identification information carried in the MAC CE received at the second moment. If the cell identification information carried in the MAC CE received at the second moment is the same as the cell identification information carried in the MAC CE received at the first moment, and the TCI corresponding to the same cell identification information is the same, it is considered that only the TCI corresponding to some candidate cells in the MAC CE received at the second moment is appropriate. Therefore, taking the latest received MAC CE as the standard, activate the TCI corresponding to the cell identification information carried in the latest received MAC CE, and ensure that the state of the same TCI corresponding to the same cell identification information in the MAC CE received at the second moment is the active state, so as to deactivate the TCI corresponding to the different cell identification information carried in the MAC CE received at the second moment.

[0131] Optionally, when the indication information for activating or deactivating the TCI of the target candidate cell is carried in the MAC CE, or when the MAC CE is a set MAC CE, the MAC CE is an LTM early TCI activation / deactivation MAC CE, and the LTM early TCI activation / deactivation MAC CE refers to the currently per candidate activated MAC CE.

[0132] In an alternative embodiment, the currently per candidate activated MAC CE may carry fields corresponding to the cell identity information of at most one candidate cell, namely, the Candidate Cell ID, the field Pi corresponding to the codepoint, the D / U field, the TCI state ID field corresponding to the status indication information of the TCI, and the R field corresponding to the idle bit. Among them:

[0133] Field Candidate Cell ID: Used to indicate the cell identity information of the candidate cell in this MAC CE, and the field length of the field Candidate Cell ID is 3 bits.

[0134] Field Pi: Used to indicate whether each TCI codepoint has multiple TCI states or a single TCI state. If the Pi field is set to 1, the i-th TCI codepoint has an uplink (Uplink) TCI state and a downlink (Downlink) TCI state. If the Pi field is set to 0, the i-th TCI codepoint only includes a downlink / combined TCI state or an uplink TCI state. The codepoint corresponding to the TCI state is determined by its order in all TCI state ID fields.

[0135] Field D / U (Downlink / Uplink): Used to indicate whether the TCI state ID field in the same byte is for the downlink / combined TCI state or the uplink TCI state. If the field D / U is set to 1, the TCI state ID field in the same byte is for the downlink / combined TCI state. If the field D / U is set to 0, the TCI state ID field in the same byte is for the uplink TCI state.

[0136] Field TCI state ID: Identification information used to indicate the TCI state, which can also be referred to as the state identification information of the TCI. If the D / U field is set to 1, a 7-bit TCI state ID is used. If the D / U field is set to 0, the most significant bit of the TCI state ID is regarded as an idle bit. The maximum number of active TCI states is 16.

[0137] Field R is set to: 0.

[0138] In some embodiments, the indication information corresponds to a target candidate cell, and the indication information is used to indicate the activation of all TCIs in the MAC CE for the target candidate cell.

[0139] In this embodiment, the indication information can be indicated for each candidate cell. Only the cell identification information of one candidate cell is carried in one MAC CE. Therefore, the indication information carried in the MAC CE sent by the network device can correspond to the candidate cell corresponding to this MAC CE, that is, the target candidate cell. Then all TCIs appearing in this MAC CE are the TCIs of this target candidate cell. The indication information can be used to indicate the activation of all TCIs appearing in this MAC CE. After receiving this MAC CE, the terminal device can directly activate all TCIs appearing in this MAC CE according to the indication information.

[0140] In some embodiments, the indication information corresponds to a target candidate cell, and the indication information is used to indicate the deactivation of all TCIs in the MAC CE for the target candidate cell.

[0141] In this embodiment, the indication information can be indicated for each candidate cell. Only the cell identification information of one candidate cell is carried in one MAC CE. Therefore, the indication information carried in the MAC CE sent by the network device can correspond to the candidate cell corresponding to this MAC CE, that is, the target candidate cell. Then all TCIs appearing in this MAC CE are the TCIs of this target candidate cell. The indication information can be used to indicate the deactivation of all TCIs appearing in this MAC CE. After receiving this MAC CE, the terminal device can directly deactivate all TCIs appearing in this MAC CE according to the indication information.

[0142] In some embodiments, if the indication information corresponds to a target candidate cell, the indication information is carried in the idle bits of the MAC CE.

[0143] In this embodiment, if the indication information corresponds to the target candidate cell, a certain idle bit in the MAC CE can be used to carry the indication information. After receiving the MAC CE, the terminal device determines to activate or deactivate all TCIs for the target candidate cell that appear in the MAC CE according to the indication information carried by the idle bit. The MAC CE can be as Figure 2 shown.

[0144] Figure 2 FIG. is a schematic diagram of a MAC CE provided by an embodiment of the present application. In Figure 2 , the first byte of the MAC CE contains a field corresponding to the idle bit and a Candidate Cell ID field, where the idle bit corresponding to field A is used to carry the indication information; the second byte contains a field Pi corresponding to the TCI code point (P1, P2,..., P8 in Figure 2 ); each byte from the third byte to the last byte includes a field D / U and a field TCI state ID (TCIstate ID 1, TCI state ID 2,..., TCI state ID N in Figure 2 ). After receiving the MAC CE, if the indication information carried by field A is used to indicate the activation of all TCIs that appear in the MAC CE, the terminal device activates all TCIs that appear in the MAC CE; if the indication information carried by field A is used to indicate the deactivation of all TCIs that appear in the MAC CE, the terminal device deactivates all TCIs that appear in the MAC CE.

[0145] Optionally, the value of the indication information for activation is different from the value of the indication information for deactivation. For example, if the value of the indication information carried by the idle bit corresponding to field A is 0, the terminal device considers that all TCIs for the target candidate cell that appear in the MAC CE are in the deactivated state, so the terminal device deactivates all TCIs that appear in the MAC CE. If the value of the indication information carried by the idle bit corresponding to field A is 1, the terminal device considers that all TCIs for the target candidate cell that appear in the MAC CE are in the activated state, so the terminal device activates all TCIs that appear in the MAC CE.

[0146] In some embodiments, the indication information corresponds to the TCI code point, and the indication information is used to indicate whether the state of the TCI code point corresponding to the indication information is the activated state or the deactivated state.

[0147] In this embodiment, the indication information can also be indicated by each TCI codepoint. In this way, the indication information corresponding to each TCI codepoint can indicate whether the state of the TCI codepoint is the active state or the deactivated state, and thus it can be determined whether to activate or deactivate the corresponding TCI.

[0148] Optionally, by carrying the indication information in the MAC CE, it is possible to dynamically activate or deactivate the TCI for the target candidate cell in the MAC CE. Therefore, the additional requirements for UE performance and the additional power consumption of the network device can be reduced.

[0149] In some embodiments, if the indication information corresponds to the TCI codepoint, the indication information is carried in N consecutive idle bit positions in the MAC CE, and the value of N depends on the number of TCI codepoints indicated in the MAC CE.

[0150] In this embodiment, if the indication information corresponds to the TCI codepoint, then bytes can be newly added to the MAC CE, and the indication information is carried in N consecutive idle bit positions in the newly added bytes. The value of N depends on the number of TCI codepoints indicated in the MAC CE. For example, if the number of TCI codepoints indicated in the MAC CE is 8, then N is 8. After receiving the MAC CE, the terminal device determines whether the state of the TCI codepoint corresponding to each indication information is the active state or the deactivated state according to the indication information carried in the N consecutive idle bit positions, and thus it can be determined whether to activate or deactivate the corresponding TCI.

[0151] Optionally, by carrying the indication information in the MAC CE, it is possible to dynamically activate or deactivate the TCI for the target candidate cell in the MAC CE. Therefore, the additional requirements for UE performance and the additional power consumption of the network device can be reduced.

[0152] In some embodiments, the types of TCI codepoints include uplink TCI codepoints, downlink TCI codepoints, or combined TCI codepoints. The order in which the indication information appears in the N consecutive idle bit positions in the MAC CE is the same as the order in which the corresponding uplink TCI codepoint, downlink TCI codepoint, or combined TCI codepoint appears.

[0153] In this embodiment, if the indication information corresponds to the TCI code point, new bytes can be added to the MAC CE, and the indication information is carried by consecutive N free bit positions in the newly added bytes. At this time, in order to facilitate determining the mapping relationship between the indication information carried by each free bit position and each TCI code point, so as to accurately determine whether the state of the TCI code point corresponding to each indication information is the active state or the deactivated state according to the indication information, the appearance order of the indication information in the consecutive N free bit positions can be made consistent with the appearance order of the corresponding uplink TCI code point, downlink TCI code point, or joint TCI code point. The MAC CE can be as Figure 3 shown.

[0154] Figure 3 Another schematic diagram of the MAC CE provided by the embodiment of the present application. In Figure 3 , the first byte of the MAC CE includes a field corresponding to the free bit position and a Candidate Cell ID field; the second byte includes a field Pi corresponding to the TCI code point (P1, P2,..., P8 in Figure 3 ); the third byte is the newly added byte, and this byte includes a field Ai corresponding to consecutive N (N is 8 in Figure 3 ) free bit positions (A1, A2,..., A8 in Figure 3 ), and the order of the field Ai is consistent with the order of the field Pi (in Figure 3 , A1 corresponds to P1, A2 corresponds to P2,..., A8 corresponds to P8); each byte from the fourth byte to the last byte includes a field D / U and a field TCI state ID (TCI state ID 1, TCI state ID2,..., TCI state ID N in Figure 3 ). After receiving the MAC CE, the terminal device determines whether the state of the TCI code point corresponding to each indication information is the active state or the deactivated state according to the indication information carried by the free bit position corresponding to the field Ai, so as to determine whether to activate or deactivate the corresponding TCI.

[0155] Optionally, the value of the indication information for activation is different from the value of the indication information for deactivation. For example, if the value of the indication information carried by the free bit position corresponding to the field A1 is 0, the terminal device considers that the TCI code point corresponding to the field P1 is in the deactivated state, so the terminal device deactivates the TCI corresponding to the TCI code point. If the value of the indication information carried by the free bit position corresponding to the field A2 is 1, the terminal device considers that the TCI code point corresponding to the field P2 is in the active state, so the terminal device activates the TCI corresponding to the TCI code point.

[0156] Optionally, by using the indication information carried in the MAC CE, it is possible to dynamically activate or deactivate the TCI for the target candidate cell in the MAC CE. Therefore, the additional requirements for UE performance and the additional power consumption of network devices can be reduced.

[0157] In some embodiments, the set MAC CE includes: indicating in the sub-header of the MAC CE that the length of the MAC CE is a set length, and the length of the MAC CE corresponds to the set length.

[0158] In this embodiment, between the network device and the terminal device, there can be an agreement that, according to the set MAC CE, all TCIs for the target candidate cell appearing in the MAC CE are deactivated. Thus, after the network device sends the MAC CE to the terminal device, the terminal device, according to the provisions of the agreement, if the sub-header of the MAC CE indicates that the length of the MAC CE is the set length and the length of the MAC CE corresponds to the set length, deactivates the TCI for the target candidate cell in the MAC CE; if the sub-header of the MAC CE indicates that the length of the MAC CE is the set length, but the length of the MAC CE is not the set length, does not deactivate the TCI for the target candidate cell in the MAC CE. Therefore, it is also possible to dynamically activate or deactivate the TCI for the target candidate cell in the MAC CE in an implicit manner, and further reduce the additional requirements for UE performance and the additional power consumption of network devices.

[0159] Optionally, the set MAC CE can be that the length of the MAC CE is the set length, that is, it is indicated in the sub-header sub-header of the MAC CE that the length of the MAC CE is the set length, and moreover, the length of the MAC CE also corresponds to the set length. The sub-header of the MAC CE can be as Figure 4 shown.

[0160] Figure 4 This is a schematic diagram of a sub-header of a MAC CE provided by an embodiment of the present application. In Figure 4 it, the first byte of the sub-header of the MAC CE contains a field LCID corresponding to the identification information of the logical channel, a field R corresponding to the idle bit, and a field F. The second and third bytes contain a field eLCID corresponding to the identification information of the enhanced logical channel. The fourth byte contains a field L, and the field L is used to represent the length of the MAC CE, and the field F is used to represent the size of the field L.

[0161] Optionally, the set length can be 2 bytes, and the 2-byte MAC CE can be as Figure 5 shown.

[0162] Figure 5 Schematic diagram of a MAC CE with a length of 2 bytes provided by an embodiment of the present application. In Figure 5 , the first byte of the MAC CE contains the field R corresponding to the idle bit and the Candidate Cell ID field; the second byte contains the field Pi corresponding to the TCI code point (P1, P2,..., P8 in Figure 5 ).

[0163] Optionally, the set length can also be 1 byte, and the 1-byte MAC CE can be as Figure 6 shown.

[0164] Figure 6 Schematic diagram of a MAC CE with a length of 1 byte provided by an embodiment of the present application. In Figure 6 , the first byte of the MAC CE contains the field R corresponding to the idle bit and the Candidate Cell ID field.

[0165] In some embodiments, if the MAC CE does not contain the status identification information of the TCI, the MAC CE is used to deactivate all TCIs in the MAC CE for the target candidate cell.

[0166] In this embodiment, if the MAC CE does not contain the status identification information (TCI state ID) of the TCI, but the MAC CE contains the cell identification information of the target candidate cell, it can be considered that there is no active TCI for the target candidate cell. Therefore, all TCIs for the target candidate cell appearing in the MAC CE can be deactivated, so that the additional requirements for UE performance and the additional power consumption of the network device can be reduced.

[0167] In some embodiments, when the MAC CE carries the cell identification information of at least one candidate cell, it further includes at least one of the following: at least one TCI code point corresponding to the cell identification information of each candidate cell, and one TCI code point corresponds to the status identification information of an uplink TCI, a downlink TCI, or a combined TCI; the status identification information of the TCI corresponding to the TCI code point carried in a separate control domain, and the status identification information indicates the number of TCIs corresponding to the TCI code point, or indicates the TCI mode corresponding to the TCI code point, and the TCI mode includes an uplink-downlink combined mode or an uplink-downlink separate mode; for the case of separately indicating the status of the uplink TCI and the status of the downlink TCI, the status identification information of the TCI corresponding to the TCI code point carried in a separate indication domain, and the status identification information is the status identification information of the uplink TCI or the status identification information of the downlink TCI.

[0168] In this embodiment, the cell identification information of at least one candidate cell may also be carried in the MAC CE sent by the network device, so as to activate or deactivate the TCI of a candidate cell, or activate or deactivate the TCIs of multiple candidate cells simultaneously, thereby reducing the additional requirements for UE performance and the additional power consumption of the network device. At this time, the MAC CE may also carry at least one TCI code point corresponding to the cell identification information of each candidate cell, and the status identification information of the TCI corresponding to the TCI code point carried in a separate control field. The status identification information may be used to indicate the number of TCIs corresponding to the TCI code point, or to indicate the TCI mode corresponding to the TCI code point. The TCI mode includes an uplink and downlink combined mode or an uplink and downlink separate mode. If in the separate mode, the status of the uplink TCI and the status of the downlink TCI are indicated separately, the MAC CE may also include the status identification information of the TCI corresponding to the TCI code point carried in a separate indication field. The separate indication field may indicate whether the status identification information carried therein is the status identification information of the uplink TCI or the status identification information of the downlink TCI. The MAC CE may be as Figure 7 shown.

[0169] Figure 7 Another schematic diagram of the MAC CE provided by the embodiment of the present application. In Figure 7 , it includes two MAC CEs, namely MAC CE A and MAC CE B.

[0170] In MAC CE A, the first byte contains fields R, P, Ntc i, and Candidate Cell ID i corresponding to the idle bit positions. Among them, the field P is used to indicate whether there is a next candidate cell and its corresponding TCI, and the field Ntc i is used to indicate the number of TCI code points corresponding to Candidate Cell ID i; the second byte contains fields Pi corresponding to the TCI code points (P1, P2,..., P8 in Figure 7 ); each byte from the third byte to the last byte includes fields D / U and field TCI state ID (TCI state ID 1, TCI state ID 2,..., TCI state ID N in Figure 7 ).

[0171] In the MAC CE B, the first byte contains fields R, P, Ntc i, and Candidate Cell ID x corresponding to the idle bit positions. Among them, the field P is used to indicate whether there is a next candidate cell and its corresponding TCI, and the field Ntc i is used to indicate the number of TCI code points corresponding to Candidate Cell ID i; the (N + 4)-th byte contains the field Pi corresponding to the TCI code point (P1, P2,..., P8 in Figure 7 ); each byte from the third byte to the last byte includes the field D / U and the field TCI state ID (TCI state ID 1, TCI state ID 2,..., TCI state ID N in Figure 7 ).

[0172] For example, taking the joint TCI as an example, that is, each TCI code point corresponds to a TCI state ID. The MAC CE received by the terminal device carries Candidate cell ID 1 and the corresponding TCI state ID 1 and TCI state ID 2 of Candidate cell ID 1, and also carries Candidate cell ID 2 and the corresponding TCI state ID 3 of Candidate cell ID 2. Then the terminal device considers that the TCI state ID 1 and TCI state ID 2 corresponding to Candidate cell ID 1 are in the active state, and activates the TCI corresponding to TCI state ID 1 and the TCI corresponding to TCI state ID 2.

[0173] Afterwards, due to factors such as the movement and occlusion of the UE, the network device finds that all TCIs corresponding to Candidate cell ID 2 are inappropriate. Moreover, except for the TCIs corresponding to TCI state ID 1 and TCI state ID 2 of Candidate cell ID 1, the signal quality of the synchronization signal blocks (SS Blocks, abbreviated as SSBs) corresponding to the TCIs of TCI state ID 4, TCI state ID 5, and TCI state ID 6 of Candidate cell ID 3 is strong and can be used as the target cell and beam to be switched. Therefore, the network device sends a new MAC CE, and the new MAC CE carries Candidate cell ID 1, TCI state ID 1 and TCI state ID 2 corresponding to Candidate cell ID 1, and TCI state ID 4, TCI state ID 5, and TCI state ID 6 corresponding to Candidate cell ID 3.

[0174] After receiving the new MAC CE, the terminal device takes the latest received MAC CE as the standard and considers that TCI state ID 1 and TCI state ID 2 corresponding to Candidate cell ID 1 are in the active state, and TCI state ID 4, TCI state ID 5, and TCI state ID 6 corresponding to Candidate cell ID 3 are in the active state, while TCI state ID 3 corresponding to Candidate cell ID 2 is in the deactivated state. Therefore, the terminal device activates the TCIs corresponding to TCI state 1 of Candidate cell ID 1 and TCI state ID 2, and activates the TCIs corresponding to TCI state ID 4, TCI state ID 5, and TCI state ID 6 of Candidate cell ID 3. And deactivates the TCI corresponding to TCI state ID 3 of Candidate cell ID 2.

[0175] Optionally, if the value of the field Ntc i in the MAC CE is 0, all TCIs corresponding to Candidate cell ID i are deactivated. Therefore, the byte where the Pi field is located may not appear in the MAC CE either.

[0176] In some embodiments, a TCI processing method is provided, which is applied to a terminal device.Figure 8 A schematic flowchart of another TCI processing method provided by an embodiment of the present application, as Figure 8 shown. The method mainly includes the following steps:

[0177] S801: Receive a MAC CE from a network device, where the MAC CE is used to explicitly or implicitly activate or deactivate the TCI of a candidate cell.

[0178] In this step, the explicit method includes: carrying indication information for activating or deactivating the TCI of a target candidate cell in the MAC CE.

[0179] The implicit method includes: activating or deactivating the TCI of a target candidate cell according to a set MAC CE; or, carrying cell identification information of at least one candidate cell in the MAC CE for activating the TCI of at least one candidate cell.

[0180] S802: Activate or deactivate the TCI of the candidate cell according to the MAC CE.

[0181] For the TCI processing method provided by an embodiment of the present application, the MAC CE is used to explicitly or implicitly activate or deactivate the TCI of a candidate cell. After the network device sends the MAC CE to the terminal device, the terminal device can activate or deactivate the TCI appearing in the MAC CE according to the MAC CE, thereby reducing the additional requirements for UE performance and the additional power consumption of the network device.

[0182] In some embodiments, a TCI processing method is provided, which is applied to a terminal device. Figure 9 A schematic flowchart of yet another TCI processing method provided by an embodiment of the present application, as Figure 9 shown. The method mainly includes the following steps:

[0183] S901: Receive a MAC CE from a network device, where the MAC CE carries indication information for activating or deactivating the TCI of a target candidate cell, and the indication information corresponds to the target candidate cell.

[0184] S902: Activate or deactivate all TCIs for the target candidate cell in the MAC CE according to the indication information.

[0185] For the TCI processing method provided by an embodiment of the present application, the MAC CE is used to explicitly activate or deactivate the TCI of a candidate cell. After the network device sends the MAC CE to the terminal device, the terminal device can activate or deactivate the TCI appearing in the MAC CE according to the MAC CE, thereby reducing the additional requirements for UE performance and the additional power consumption of the network device.

[0186] In some embodiments, the indication information corresponds to a target candidate cell, and the indication information is carried in the idle bit positions in the MAC CE.

[0187] In this embodiment, if the indication information corresponds to a target candidate cell, a certain idle bit position in the MAC CE can be used to carry the indication information. After receiving the MAC CE, the terminal device determines to activate or deactivate all TCIs for the target candidate cell that appear in the MAC CE according to the indication information carried in the idle bit position. The MAC CE can be as Figure 2 shown.

[0188] Optionally, the indication information can be indicated for each candidate cell. Only the cell identification information of one candidate cell is carried in one MAC CE. Therefore, the indication information carried in the MAC CE sent by the network device can correspond to the candidate cell corresponding to the MAC CE, that is, the target candidate cell. Then all TCIs that appear in the MAC CE are the TCIs of the target candidate cell.

[0189] Optionally, if the indication information is used to indicate the activation of all TCIs for the target candidate cell that appear in the MAC CE, the terminal device activates all TCIs for the target candidate cell that appear in the MAC CE. If the indication information is used to indicate the deactivation of all TCIs for the target candidate cell that appear in the MAC CE, the terminal device deactivates all TCIs for the target candidate cell that appear in the MAC CE.

[0190] For example, if the indication information corresponds to a target candidate cell, when the value of the indication information is 0, the terminal device considers that all TCIs for the target candidate cell that appear in the MAC CE are in the deactivated state, and thus the terminal device deactivates all TCIs that appear in the MAC CE. When the value of the indication information is 1, the terminal device considers that all TCIs for the target candidate cell that appear in the MAC CE are in the activated state, and thus the terminal device activates all TCIs that appear in the MAC CE.

[0191] Optionally, by carrying the indication information in the MAC CE, it is possible to dynamically activate or deactivate the TCIs for the target candidate cell in the MAC CE. Therefore, the additional requirements for UE performance and the additional power consumption of the network device can be reduced.

[0192] In some embodiments, the indication information corresponds to a target candidate cell, and the indication information is used to indicate the activation or deactivation of the TCIs corresponding to the status identification information of the TCIs carried for the target candidate cell in the MAC CE.

[0193] In this embodiment, the indication information can be indicated by each candidate cell. Only the cell identification information of one candidate cell is carried in one MAC CE. Therefore, the indication information carried in the MAC CE sent by the network device can correspond to the candidate cell corresponding to this MAC CE, that is, the target candidate cell. All TCIs appearing in this MAC CE are the TCIs of the target candidate cell.

[0194] Optionally, when the indication information is used to indicate that the TCI corresponding to the TCI state ID carried by the target candidate cell in this MAC CE is activated, the terminal device activates the TCI corresponding to the TCI state ID carried by the target candidate cell in this MAC CE; when the indication information is used to indicate that the TCI corresponding to the TCI state ID carried by the target candidate cell in this MAC CE is deactivated, the terminal device deactivates the TCI corresponding to the TCI state ID carried by the target candidate cell in this MAC CE.

[0195] Optionally, by carrying the indication information in the MAC CE, it is possible to dynamically activate or deactivate the TCI for the target candidate cell in the MAC CE. Therefore, the additional requirements for UE performance and the additional power consumption of the network device can be reduced.

[0196] In some embodiments, a TCI processing method is provided, which is applied to a terminal device. Figure 10 The following is a schematic flowchart of another TCI processing method provided by the embodiments of this application, as Figure 10 shown. This method mainly includes the following steps:

[0197] S1001: Receive a MAC CE from a network device. The MAC CE carries indication information for activating or deactivating the TCI of a target candidate cell, and the indication information corresponds to a TCI code point.

[0198] S1002: Activate or deactivate the TCI corresponding to the TCI code point according to the indication information.

[0199] For the TCI processing method provided by the embodiments of this application, the MAC CE is used to explicitly activate or deactivate the TCI of a candidate cell. After the network device sends the MAC CE to the terminal device, the terminal device can activate or deactivate the TCI appearing in the MAC CE according to the MAC CE, thereby reducing the additional requirements for UE performance and the additional power consumption of the network device.

[0200] In some embodiments, the indication information may also be indicated by each TCI codepoint. If the indication information corresponding to each TCI codepoint can indicate that the state of the TCI codepoint is the active state, then it can be determined to activate the corresponding TCI. Or deactivate it. If the indication information corresponding to each TCI codepoint can indicate that the state of the TCI codepoint is the deactivated state, then it can be determined to deactivate the corresponding TCI.

[0201] For example, if the indication information corresponds to a TCI codepoint, when the value of the indication information is 0, the terminal device considers that the TCI corresponding to the TCI codepoint is in the deactivated state, so the terminal device deactivates the TCI corresponding to the TCI codepoint. When the value of the indication information is 1, the terminal device considers that the TCI corresponding to the TCI codepoint is in the active state, so the terminal device activates the TCI corresponding to the TCI codepoint.

[0202] Optionally, by carrying the indication information in the MAC CE, it is possible to dynamically activate or deactivate the TCI in the MAC CE for the target candidate cell. Therefore, the additional requirements for UE performance and the additional power consumption of the network device can be reduced.

[0203] In some embodiments, if the indication information corresponds to a TCI codepoint, the indication information is carried in N consecutive idle bit positions in the MAC CE; where the value of N depends on the number of TCI codepoints indicated in the MAC CE; or the value of N is at most 8 or 16.

[0204] In this embodiment, if the indication information corresponds to a TCI codepoint, then a new byte can be added to the MAC CE, and the indication information is carried in N consecutive idle bit positions in the newly added byte. The value of N depends on the number of TCI codepoints indicated in the MAC CE. For example, if the number of TCI codepoints indicated in the MAC CE is 8, then N is 8; the value of N can also be set to at most 8 or 16.

[0205] Optionally, after receiving the MAC CE, the terminal device determines whether the state of the TCI codepoint corresponding to each indication information is the active state or the deactivated state according to the indication information carried in the N consecutive idle bit positions, and thus can determine whether to activate or deactivate the corresponding TCI.

[0206] Optionally, by carrying the indication information in the MAC CE, it is possible to dynamically activate or deactivate the TCI in the MAC CE for the target candidate cell. Therefore, the additional requirements for UE performance and the additional power consumption of the network device can be reduced.

[0207] In some embodiments, the types of TCI code points include uplink TCI code points, downlink TCI code points, or combined TCI code points. The order in which the indication information appears in N consecutive idle bit positions in the MAC CE is the same as the order in which the corresponding uplink TCI code point, downlink TCI code point, or combined TCI code point appears. The indication information is used to indicate whether the state of the TCI code point corresponding to the indication information is the active state or the deactivated state.

[0208] In this embodiment, if the indication information corresponds to a TCI code point, new bytes can be added to the MAC CE, and the indication information is carried by N consecutive idle bit positions in the newly added bytes. At this time, in order to facilitate determining the mapping relationship between the indication information carried by each idle bit position and each TCI code point, so as to accurately determine whether the state of the TCI code point corresponding to each indication information is the active state or the deactivated state according to the indication information, the order in which the indication information appears in N consecutive idle bit positions can be the same as the order in which the corresponding uplink TCI code point, downlink TCI code point, or combined TCI code point appears. This MAC CE can be as Figure 3 shown.

[0209] Optionally, the value of the indication information for activation is different from the value of the indication information for deactivation. For example, if the value of the indication information carried by the idle bit position corresponding to field A1 is 0, the terminal device considers that the TCI code point corresponding to field P1 is in the deactivated state, and thus the terminal device deactivates the TCI corresponding to this TCI code point. If the value of the indication information carried by the idle bit position corresponding to field A2 is 1, the terminal device considers that the TCI code point corresponding to field P2 is in the active state, and thus the terminal device activates the TCI corresponding to this TCI code point.

[0210] Optionally, by carrying the indication information in the MAC CE, it is possible to dynamically activate or deactivate the TCI for the target candidate cell in the MAC CE. Therefore, the additional requirements for UE performance and the additional power consumption of the network device can be reduced.

[0211] In some embodiments, a TCI processing method is provided, which is applied to a terminal device. Figure 11 For another TCI processing method provided by the embodiments of the present application, the flowchart is as Figure 11 shown. The method mainly includes the following steps:

[0212] S1101: Receive the set MAC CE from the network device. The set MAC CE is used to activate or deactivate the TCI of the target candidate cell.

[0213] S1102: Activate or deactivate the TCI for the target candidate cell in the MAC CE according to the set MAC CE.

[0214] In this step, a protocol can be established between the network device and the terminal device. The set MAC CE is used to indicate the deactivation of all TCIs for the target candidate cell that appear in this MAC CE. Thus, after the network device sends the set MAC CE to the terminal device, the terminal device determines whether to deactivate all TCIs for the target candidate cell that appear in this MAC CE according to the received MAC CE in accordance with the provisions of the protocol.

[0215] Optionally, a protocol can be established between the network device and the terminal device. The set MAC CE is used to indicate the activation of all TCIs for the target candidate cell that appear in this MAC CE. Thus, after the network device sends the set MAC CE to the terminal device, the terminal device determines whether to activate all TCIs for the target candidate cell that appear in this MAC CE according to the received MAC CE in accordance with the provisions of the protocol.

[0216] Therefore, the dynamic activation or deactivation of the TCIs for the target candidate cell in the MAC CE can also be achieved in an implicit manner, thereby reducing the additional requirements for UE performance and the additional power consumption of the network device.

[0217] In the TCI processing method provided by the embodiments of this application, the MAC CE is used to implicitly activate or deactivate the TCIs of the candidate cell. After the network device sends the MAC CE to the terminal device, the terminal device can activate or deactivate the TCIs that appear in the MAC CE dynamically according to the MAC CE, thereby reducing the additional requirements for UE performance and the additional power consumption of the network device.

[0218] In some embodiments, the set MAC CE includes: the sub-header of the MAC CE indicates that the length of the MAC CE is a set length, and the length of the MAC CE corresponds to the set length.

[0219] In this embodiment, the protocol between the network device and the terminal device stipulates that the MAC CE with the set length is used to indicate the deactivation of the TCIs for the target candidate cell in this MAC CE. Then, after the terminal device receives the MAC CE, if the sub-header of this MAC CE indicates that the length of the MAC CE is the set length and the length of this MAC CE corresponds to the set length, it deactivates the TCIs for the target candidate cell in this MAC CE; if the sub-header of this MAC CE indicates that the length of the MAC CE is the set length, but the length of this MAC CE is not the set length, it does not deactivate the TCIs for the target candidate cell in this MAC CE.

[0220] Optionally, the protocol between the network device and the terminal device may also stipulate that a MAC CE of a set length is used to indicate the activation of the TCI for the target candidate cell in the MAC CE. After receiving the MAC CE, if the subheader of the MAC CE indicates that the MAC CE length is the set length and the MAC CE length corresponds to the set length, the terminal device activates the TCI for the target candidate cell in the MAC CE; if the subheader of the MAC CE indicates that the MAC CE length is the set length, but the MAC CE length is not the set length, the terminal device does not activate the TCI for the target candidate cell in the MAC CE.

[0221] Optionally, the set MAC CE may be that the length of the MAC CE is the set length, that is, the subheader of the MAC CE indicates that the MAC CE length is the set length, and the length of the MAC CE also corresponds to the set length. The subheader of the MAC CE may be as Figure 4 shown.

[0222] Optionally, the set length may be 2 bytes, and the 2-byte MAC CE may be as Figure 5 shown.

[0223] Optionally, the set length may also be 1 byte, and the 1-byte MAC CE may be as Figure 6 shown.

[0224] In some embodiments, a TCI processing method is provided, which is applied to a terminal device. Figure 12 For the flowchart of another TCI processing method provided by the embodiments of the present application, as Figure 12 shown, the method mainly includes the following steps:

[0225] S1201: Receive a MAC CE from a network device, where the MAC CE does not contain the status identification information of the TCI.

[0226] S1202: Deactivate all TCIs for the target candidate cell in the MAC CE according to the MAC CE.

[0227] In this step, if the MAC CE does not contain the status identification information (field TCI state ID) of the TCI, but the MAC CE contains the cell identification information of the target candidate cell, it can be considered that there is no activated TCI for the target candidate cell, so that all TCIs for the target candidate cell appearing in the MAC CE can be deactivated. Therefore, the additional requirements for UE performance and the additional power consumption of the network device can be reduced.

[0228] In the embodiment of the present application, for the TCI processing method, the MAC CE is used to implicitly activate or deactivate the TCI of the candidate cell. After the network device sends the MAC CE to the terminal device, the terminal device can, according to the MAC CE, dynamically activate or deactivate the TCI appearing in the MAC CE, thereby reducing the additional requirements for UE performance and the additional power consumption of the network device.

[0229] In some embodiments, a TCI processing method is provided, which is applied to a terminal device. Figure 13 As the schematic flow chart of still another TCI processing method provided by the embodiment of the present application, as Figure 13 shown, the method mainly includes the following steps:

[0230] S1301: Receive a MAC CE from a network device, where the MAC CE only contains the identification information of the logical channel.

[0231] S1302: According to the MAC CE, deactivate the TCI of the candidate cell corresponding to the identification information of the logical channel.

[0232] In this step, the MAC CE may not contain the cell identification information of the candidate cell, but only contain the identification information of the logical channel. Then, it can be considered that there is no activated TCI in the candidate cell. Therefore, through this MAC CE, the TCI of the candidate cell corresponding to the identification information of the logical channel can be deactivated. Therefore, the additional requirements for UE performance and the additional power consumption of the network device can be reduced.

[0233] In the embodiment of the present application, for the TCI processing method, the MAC CE is used to implicitly activate or deactivate the TCI of the candidate cell. After the network device sends the MAC CE to the terminal device, the terminal device can, according to the MAC CE, dynamically activate or deactivate the TCI appearing in the MAC CE, thereby reducing the additional requirements for UE performance and the additional power consumption of the network device.

[0234] In some embodiments, a TCI processing method is provided, which is applied to a terminal device. Figure 14 As the schematic flow chart of still another TCI processing method provided by the embodiment of the present application, as Figure 14 shown, the method mainly includes the following steps:

[0235] S1401: Receive a MAC CE from a network device, where the MAC CE carries the cell identification information of at least one candidate cell, and is used to activate the TCI of at least one candidate cell.

[0236] S1402: According to the MAC CE, activate the TCI of at least one candidate cell.

[0237] In the TCI processing method provided by an embodiment of this application, the MAC CE is used to implicitly activate or deactivate the TCI of a candidate cell. After the network device sends the MAC CE to the terminal device, the terminal device can activate or deactivate the TCI appearing in the MAC CE dynamically according to the MAC CE, thereby reducing the additional requirements for UE performance and the additional power consumption of the network device.

[0238] In some embodiments, when the cell identification information of at least one candidate cell is carried in the MAC CE, it further includes at least one of the following: at least one TCI code point corresponding to the cell identification information of each candidate cell, and one TCI code point corresponds to the status identification information of an uplink TCI, the status identification information of a downlink TCI, or the status identification information of a combined TCI; the status identification information of the TCI corresponding to the TCI code point carried in a separate control domain, and the status identification information indicates the number of TCIs corresponding to the TCI code point, or indicates the TCI mode corresponding to the TCI code point, and the TCI mode includes an uplink-downlink combined mode or an uplink-downlink separate mode; for the case of separately indicating the status of the uplink TCI and the status of the downlink TCI, the status identification information of the TCI corresponding to the TCI code point carried in a separate indication domain, and the status identification information is the status identification information of the uplink TCI or the status identification information of the downlink TCI.

[0239] In this embodiment, the cell identification information of at least one candidate cell may also be carried in the MAC CE sent by the network device to activate or deactivate the TCI of a candidate cell, or activate or deactivate the TCIs of multiple candidate cells simultaneously, thereby reducing the additional requirements for UE performance and the additional power consumption of the network device. At this time, at least one TCI code point corresponding to the cell identification information of each candidate cell may also be carried in the MAC CE, and the status identification information of the TCI corresponding to the TCI code point carried in a separate control domain, and the status identification information may be used to indicate the number of TCIs corresponding to the TCI code point, or to indicate the TCI mode corresponding to the TCI code point, and the TCI mode includes an uplink-downlink combined mode or an uplink-downlink separate mode. If the separate mode is used to separately indicate the status of the uplink TCI and the status of the downlink TCI, the MAC CE may further include the status identification information of the TCI corresponding to the TCI code point carried in a separate indication domain, and the separate indication domain may indicate whether the status identification information of the TCI carried therein is the status identification information of the uplink TCI or the status identification information of the downlink TCI. The MAC CE may be as Figure 7 shown.

[0240] In some embodiments, the status of the TCI corresponding to the cell identification information carried in the MAC CE received at the first moment is the active state, and the first moment is the latest moment when the MAC CE is received.

[0241] In this embodiment, due to factors such as movement and occlusion of the terminal device, in order to ensure the signal quality of the SSB with strong TCI, it is necessary to switch the target cell and beam. Therefore, the network device monitors in real time whether the TCI corresponding to one or more candidate cells in the MAC CE sent to the terminal device is appropriate. If it is not appropriate, the network device needs to send a new MAC CE to the terminal device. Thus, the terminal device needs to activate the TCI corresponding to the cell identification information carried in the latest received MAC CE based on the latest received MAC CE.

[0242] In some embodiments, if a MAC CE is received at the second moment and the cell identification information carried in the MAC CE is not included in the cell identification information carried in the MAC CE received at the first moment, the state of the TCI corresponding to the cell identification information carried in the MAC CE received at the second moment is the deactivated state, where the second moment is before the first moment.

[0243] In this embodiment, the network device can send the MAC CE to the terminal device multiple times. If, after the network device sends the MAC CE to the terminal device at the second moment, it is monitored that the TCI corresponding to one or more candidate cells in the MAC CE sent at the second moment is not appropriate, a new MAC CE (i.e., the MAC CE sent at the first moment) can be sent to the terminal device. The terminal device activates the TCI corresponding to the cell identification information carried in the latest received MAC CE based on the cell identification information and its corresponding TCI carried in the latest received MAC CE. Thus, while dynamically activating or deactivating the TCI for the target candidate cell in the MAC CE, reducing the additional requirements for UE performance and the additional power consumption of the network device, it can also ensure the signal quality of the SSB with strong TCI of the target cell to be switched.

[0244] Optionally, if the terminal device receives a MAC CE at the second moment and the cell identification information carried in the MAC CE received at the second moment is not included in the cell identification information carried in the MAC CE received at the first moment, it is considered that the TCI corresponding to one or more candidate cells in the MAC CE received at the second moment is not appropriate. Therefore, based on the latest received MAC CE, the TCI corresponding to the cell identification information carried in the latest received MAC CE is activated, and the TCI corresponding to the cell identification information carried in the MAC CE received at the second moment is deactivated.

[0245] In some embodiments, if the cell identification information carried in the MAC CE received at the second moment is the same as the cell identification information carried in the MAC CE received at the first moment, and the TCI corresponding to the same cell identification information is the same, then the state of the same TCI corresponding to the same cell identification information is the active state.

[0246] In this embodiment, the network device may send the MAC CE to the terminal device multiple times. If, after the network device sends the MAC CE to the terminal device at the second moment, it is detected that the TCI corresponding to a certain candidate cell or some candidate cells in the MAC CE sent at the second moment is inappropriate, the network device may send a new MAC CE (i.e., the MAC CE sent at the first moment) to the terminal device. The terminal device takes the cell identification information carried in the latest received MAC CE and its corresponding TCI as the standard, and activates the TCI corresponding to the cell identification information carried in the latest received MAC CE. Thus, while dynamically activating or deactivating the TCI for the target candidate cell in the MAC CE, reducing the additional requirements for UE performance and the additional power consumption of the network device, it can also ensure the signal quality of the SSB with a strong TCI of the target cell to be switched.

[0247] Optionally, if the cell identification information carried in the MAC CE received at the second moment is the same as the cell identification information carried in the MAC CE received at the first moment, and the TCI corresponding to the same cell identification information is the same, it is considered that only the TCI corresponding to some candidate cells in the MAC CE received at the second moment is appropriate. Therefore, taking the latest received MAC CE as the standard, the TCI corresponding to the cell identification information carried in the latest received MAC CE is activated, and it is ensured that the state of the same TCI corresponding to the same cell identification information in the MAC CE received at the second moment is the active state, so as to deactivate the TCI corresponding to the different cell identification information carried in the MAC CE received at the second moment.

[0248] For example, taking joint TCI as an example, that is, each TCI code point corresponds to a TCI state ID. The Candidate cell ID 1, the TCI state ID 1 and TCI state ID 2 corresponding to the Candidate cell ID 1, and the Candidate cell ID 2 and the TCI state ID 3 corresponding to the Candidate cell ID 2 are carried in the MAC CE received by the terminal device. Then the terminal device considers that the TCI state ID 1 and TCI state ID 2 corresponding to the Candidate cell ID 1 are in the active state, and activates the TCI corresponding to the TCI state ID 1 and the TCI corresponding to the TCI state ID 2.

[0249] Afterwards, due to factors such as the movement and occlusion of the UE, the network device finds that all the TCIs corresponding to the Candidate cell ID 2 are not suitable, and, in addition to the TCIs corresponding to the TCI state ID 1 and TCI state ID 2 of the Candidate cell ID 1, the signal quality of the SSBs of the TCIs corresponding to the TCI state ID 4, TCI state ID 5 and TCI state ID 6 of the Candidate cell ID 3 is relatively strong and can be used as the target cell and beam to be switched. Therefore, the network device sends a new MAC CE, and the new MAC CE carries the Candidate cell ID 1, the TCI state ID 1 and TCI state ID 2 corresponding to the Candidate cell ID 1, and the TCI state ID 4, TCI state ID 5 and TCI state ID 6 corresponding to the Candidate cell ID 3.

[0250] After the terminal device receives a new MAC CE, it takes the latest received MAC CE as the standard and considers that the TCI state ID 1 and TCI state ID 2 corresponding to Candidate cell ID 1 are in the active state, and the TCI state ID 4, TCI state ID 5, and TCI state ID 6 corresponding to Candidate cell ID 3 are in the active state, while the TCI state ID 3 corresponding to Candidate cell ID 2 is in the deactivated state. Therefore, the terminal device activates the TCIs corresponding to TCI state 1 corresponding to Candidate cell ID 1 and TCI state ID 2, and activates the TCIs corresponding to TCI state ID 4, TCI state ID 5, and TCI state ID 6 corresponding to Candidate cell ID 3. And deactivates the TCI corresponding to TCI state ID 3 corresponding to Candidate cell ID 2.

[0251] Optionally, the MAC CE may be as Figure 7 shown. If the value of the field Ntc i in the MAC CE is 0, then all the TCIs corresponding to Candidate cell ID i are deactivated. Therefore, the byte where the Pi field is located may not appear in the MAC CE either.

[0252] In some embodiments, the MAC CE carries indication information for activating or deactivating the TCI of the target candidate cell, or when the MAC CE is a set MAC CE, the MAC CE is an LTM early TCI activation / deactivation MAC CE, and the LTM early TCI activation / deactivation MAC CE refers to the current per candidate activation MAC CE.

[0253] In an alternative implementation, the current per candidate activation MAC CE may carry fields corresponding to the cell identification information of at most one candidate cell, namely Candidate Cell ID, the field Pi corresponding to the code point, the field D / U, the field TCI state ID corresponding to the status identification information of the TCI, and the field R corresponding to the idle bit. Among them:

[0254] Field Candidate Cell ID: Used to indicate the cell identification information of the candidate cell in this MAC CE. The field length of the Field Candidate Cell ID is 3 bits.

[0255] Field Pi: Used to indicate whether each TCI code point has multiple TCI states or a single TCI state. If the Pi field is set to 1, the i-th TCI code point has an uplink TCI state and a downlink TCI state. If the Pi field is set to 0, the i-th TCI code point only includes a downlink / associated TCI state or an uplink TCI state. The code point corresponding to the TCI state is determined by its order in all TCI state ID fields.

[0256] Field D / U: Used to indicate whether the TCI state ID field in the same byte is for a downlink / associated TCI state or an uplink TCI state. If the Field D / U is set to 1, the TCI state ID field in the same byte is for a downlink / associated TCI state. If the Field D / U is set to 0, the TCI state ID field in the same byte is for an uplink TCI state.

[0257] Field TCI state ID: If the D / U field is set to 1, a TCI state ID with a length of 7 bits is used. If the D / U field is set to 0, the most significant bit of the TCI state ID is regarded as an idle bit. The maximum number of active TCI states is 16.

[0258] Field R is set to: 0.

[0259] In some embodiments, a TCI processing device is provided, which is applied to a network device.

[0260] Figure 15 It is a schematic structural diagram of a TCI processing device provided by an embodiment of this application, as Figure 15 shown. The TCI processing device 1500 includes:

[0261] A sending module 1501, configured to send a MAC CE to a terminal device, where the MAC CE is used to explicitly or implicitly activate or deactivate the TCI of a candidate cell;

[0262] Among them, the manner adopted for explicit activation includes:

[0263] The MAC CE carries indication information for activating or deactivating the TCI of a target candidate cell;

[0264] The manner adopted for implicit activation includes:

[0265] Activate or deactivate the TCI of the target candidate cell according to the set MAC CE; or,

[0266] The cell identification information of at least one candidate cell is carried in the MAC CE, which is used to activate the TCI of at least one candidate cell.

[0267] In some embodiments, the indication information corresponds to the target candidate cell, and the indication information is used to indicate the activation or deactivation of all TCIs for the target candidate cell in the MAC CE; or, the indication information corresponds to the TCI code point, and the indication information is used to indicate that the status of the TCI code point corresponding to the indication information is the active state or the deactivated state.

[0268] In some embodiments, if the indication information corresponds to the target candidate cell, the indication information is carried in the idle bit positions in the MAC CE; if the indication information corresponds to the TCI code point, the indication information is carried in N consecutive idle bit positions in the MAC CE, and the value of N depends on the number of TCI code points indicated in the MAC CE.

[0269] In some embodiments, the types of TCI code points include uplink TCI code points, downlink TCI code points, or combined TCI code points.

[0270] In some embodiments, the order of appearance of the indication information in N consecutive idle bit positions in the MAC CE is the same as the order of appearance of the corresponding uplink TCI code point, downlink TCI code point, or combined TCI code point.

[0271] In some embodiments, the value of the indication information for activation is different from the value of the indication information for deactivation.

[0272] In some embodiments, the set MAC CE includes: indicating in the sub-header of the MAC CE that the length of the MAC CE is the set length, and the length of the MAC CE corresponds to the set length.

[0273] In some embodiments, the set length is 2 bytes or 1 byte.

[0274] In some embodiments, if the MAC CE does not contain the status identification information of the TCI, the MAC CE is used to deactivate all TCIs for the target candidate cell in the MAC CE.

[0275] In some embodiments, when the cell identification information of at least one candidate cell is carried in the MAC CE, it further includes at least one of the following: at least one TCI code point corresponding to the cell identification information of each candidate cell, where one TCI code point corresponds to the status identification information of an uplink TCI, the status identification information of a downlink TCI, or the status identification information of a combined TCI; the status identification information of the TCI corresponding to the TCI code point carried in a separate control field, where the status identification information indicates the number of TCIs corresponding to the TCI code point, or indicates the TCI mode corresponding to the TCI code point, and the TCI mode includes an uplink-downlink combined mode or an uplink-downlink separate mode; for the case of separately indicating the status of the uplink TCI and the status of the downlink TCI, the status identification information of the TCI corresponding to the TCI code point carried in a separate indication field, and the status identification information is the status identification information of the uplink TCI or the status identification information of the downlink TCI.

[0276] In some embodiments, a TCI processing device is provided, which is applied to a terminal device.

[0277] Figure 16 The structural schematic diagram of a TCI processing device provided by an embodiment of the present application is shown as Figure 16 shown. The TCI processing device 1600 includes:

[0278] A receiving module 1601, configured to receive a MAC CE from a network device, where the MAC CE is used to explicitly or implicitly activate or deactivate the TCI of a candidate cell;

[0279] A processing module 1602, configured to activate or deactivate the TCI of a candidate cell according to the MAC CE;

[0280] Among them, the explicit method includes:

[0281] The MAC CE carries indication information for activating or deactivating the TCI of a target candidate cell;

[0282] The implicit method includes:

[0283] Activating or deactivating the TCI of a target candidate cell according to a set MAC CE; or,

[0284] The MAC CE carries the cell identification information of at least one candidate cell for activating the TCI of at least one candidate cell.

[0285] In some embodiments, the indication information corresponds to a target candidate cell, and the indication information is used to indicate the activation or deactivation of all TCIs for the target candidate cell in the MAC CE, or the indication information is used to indicate the activation or deactivation of the TCI corresponding to the identification information of the TCI carried for the target candidate cell in the MAC CE.

[0286] In some embodiments, the indication information corresponds to a TCI code point, and the indication information is used to indicate the activation or deactivation of the TCI corresponding to the TCI code point.

[0287] In some embodiments, the types of TCI code points include uplink TCI code points, downlink TCI code points, or combined TCI code points.

[0288] In some embodiments, if the indication information corresponds to a TCI code point, the indication information is carried in N consecutive idle bit positions in the MAC CE; where the value of N depends on the number of TCI code points indicated in the MAC CE; or, the maximum value of N is 8 or 16.

[0289] In some embodiments, the order of appearance of the indication information in N consecutive idle bit positions in the MAC CE is the same as the order of appearance of the corresponding uplink TCI code point, downlink TCI code point, or combined TCI code point, and the indication information is used to indicate that the state of the TCI code point corresponding to the indication information is the active state or the deactivated state.

[0290] In some embodiments, the value of the indication information for activation is different from the value of the indication information for deactivation.

[0291] In some embodiments, the set MAC CE includes: indicating in the sub-header of the MAC CE that the length of the MAC CE is the set length, and the length of the MAC CE corresponds to the set length.

[0292] In some embodiments, the set length is 2 bytes or 1 byte.

[0293] In some embodiments, if the MAC CE does not contain the status identification information of the TCI, the MAC CE is used to deactivate all TCIs for the target candidate cell in the MAC CE.

[0294] In some embodiments, if the MAC CE only contains the identification information of the logical channel, the MAC CE is used to deactivate the TCI of the candidate cell corresponding to the identification information of the logical channel.

[0295] In some embodiments, when the cell identification information of at least one candidate cell is carried in the MAC CE, it further includes at least one of the following: at least one TCI code point corresponding to the cell identification information of each candidate cell, where one TCI code point corresponds to the status identification information of an uplink TCI, the status identification information of a downlink TCI, or the status identification information of a combined TCI; the status identification information of the TCI corresponding to the TCI code point carried in a separate control field, where the status identification information indicates the number of TCIs corresponding to the TCI code point, or indicates the TCI mode corresponding to the TCI code point, and the TCI mode includes an uplink-downlink combined mode or an uplink-downlink separate mode; for the case of separately indicating the status of the uplink TCI and the status of the downlink TCI, the status identification information of the TCI corresponding to the TCI code point carried in a separate indication field, and the status identification information is the status identification information of the uplink TCI or the status identification information of the downlink TCI.

[0296] In some embodiments, the status of the TCI corresponding to the cell identification information carried in the MAC CE received at the first moment is the active state, and the first moment is the latest moment when the MAC CE is received.

[0297] In some embodiments, if the MAC CE is received at the second moment and the cell identification information carried in the MAC CE is not included in the cell identification information carried in the MAC CE received at the first moment, then the status of the TCI corresponding to the cell identification information carried in the MAC CE received at the second moment is the deactivated state, where the second moment is before the first moment; and / or; if the cell identification information carried in the MAC CE received at the second moment is the same as the cell identification information carried in the MAC CE received at the first moment, and the TCIs corresponding to the same cell identification information are the same, then the status of the same TCI corresponding to the same cell identification information is the active state.

[0298] It should be noted that the division of units in the embodiments of the present application is illustrative, and is only a logical function division. In actual implementation, there may be other division methods. In addition, in each embodiment of the present application, each functional unit may be integrated in a processing unit, or each unit may exist physically separately, or two or more units may be integrated in one unit. The above integrated units may be implemented in the form of hardware or in the form of software functional units.

[0299] When the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on such understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in various embodiments of this application.

[0300] It should be noted here that the above-mentioned device provided in the embodiments of the present invention can implement all the method steps implemented in the above method embodiments and can achieve the same technical effects. Therefore, the same parts and beneficial effects as those in the method embodiments will not be specifically described in this embodiment.

[0301] In some embodiments, a TCI processing device is also provided.

[0302] Figure 17 The structural schematic diagram of a TCI processing device provided in the embodiments of this application is as Figure 17 shown. The TCI processing device includes: a memory 1711, a transceiver 1712, and a processor 1713.

[0303] The memory 1711 is used to store computer programs;

[0304] The transceiver 1712 is used to receive and send data under the control of the processor 1713.

[0305] Among them, in Figure 17 the bus architecture may include any number of interconnected buses and bridges. Specifically, various circuits represented by one or more processors represented by the processor 1713 and the memory represented by the memory 1711 are linked together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art. Therefore, they will not be further described herein. The bus interface provides an interface. The transceiver 1712 may be multiple elements, that is, including a transmitter and a receiver, and provides a unit for communicating with various other devices on a transmission medium, and these transmission media include wireless channels, wired channels, optical cables, and other transmission media. The processor 1713 is responsible for managing the bus architecture and general processing, and the memory 1711 can store the data used by the processor 1713 when executing operations.

[0306] The processor 1713 may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or a Complex Programmable Logic Device (CPLD). The processor may also adopt a multi-core architecture.

[0307] The processor 1713 reads the computer program in the memory 1711 and performs the following operations:

[0308] Send a MAC CE to the terminal device, where the MAC CE is used to explicitly or implicitly activate or deactivate the TCI of the candidate cell;

[0309] Among them, the explicit method includes:

[0310] The MAC CE carries indication information for activating or deactivating the TCI of the target candidate cell;

[0311] The implicit method includes:

[0312] Activate or deactivate the TCI of the target candidate cell according to the set MAC CE; or,

[0313] The MAC CE carries the cell identification information of at least one candidate cell, which is used to activate the TCI of at least one candidate cell.

[0314] In some embodiments, the indication information corresponds to the target candidate cell, and the indication information is used to indicate the activation or deactivation of all TCIs in the MAC CE for the target candidate cell; or,

[0315] The indication information corresponds to the TCI code point, and the indication information is used to indicate whether the state of the TCI code point corresponding to the indication information is the active state or the deactivated state.

[0316] In some embodiments, if the indication information corresponds to the target candidate cell, the indication information is carried in the idle bit positions in the MAC CE;

[0317] If the indication information corresponds to the TCI code point, the indication information is carried in N consecutive idle bit positions in the MAC CE, and the value of N depends on the number of TCI code points indicated in the MAC CE.

[0318] In some embodiments, the types of TCI code points include uplink TCI code points, downlink TCI code points, or combined TCI code points.

[0319] In some embodiments, the order of occurrence of the indication information in N consecutive idle bit positions in the MAC CE is the same as the order of occurrence of the corresponding uplink TCI code point, downlink TCI code point, or combined TCI code point.

[0320] In some embodiments, the value of the indication information for activation is different from the value of the indication information for deactivation.

[0321] In some embodiments, the set MAC CE includes:

[0322] The sub - header of the MAC CE indicates that the length of the MAC CE is a set length, and the length of the MAC CE corresponds to the set length.

[0323] In some embodiments, the set length is 2 bytes or 1 byte.

[0324] In some embodiments, if the MAC CE does not contain the status identification information of the TCI, the MAC CE is used to deactivate all TCIs in the MAC CE for the target candidate cell.

[0325] In some embodiments, when the cell identification information of at least one candidate cell is carried in the MAC CE, it further includes at least one of the following:

[0326] At least one TCI code point corresponding to the cell identification information of each candidate cell, and one TCI code point corresponds to the status identification information of an uplink TCI, downlink TCI, or combined TCI;

[0327] The status identification information of the TCI corresponding to the TCI code point carried in a separate control field, where the status identification information indicates the number of TCIs corresponding to the TCI code point, or indicates the TCI mode, and the TCI mode includes an uplink - downlink combined mode or an uplink - downlink separate mode;

[0328] For the case of separately indicating the status of the uplink TCI and the status of the downlink TCI, the status identification information of the TCI corresponding to the TCI code point carried in a separate indication field, where the status identification information is the status identification information of the uplink TCI or the status identification information of the downlink TCI.

[0329] In some embodiments, a TCI processing device is further provided.

[0330] Figure 18 As shown in the schematic structural diagram of a TCI processing device provided for the embodiments of the present application, Figure 18 as shown, the TCI processing device includes: a memory 1811, a transceiver 1812, and a processor 1813.

[0331] The memory 1811 is used to store computer programs;

[0332] The transceiver 1812 is used to receive and send data under the control of the processor 1813.

[0333] Among them, in Figure 18 The bus architecture may include any number of interconnected buses and bridges, specifically, various circuits represented by one or more processors and memories represented by the processor are linked together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art, so they will not be further described herein. The bus interface provides an interface. The transceiver can be multiple components, that is, including a transmitter and a receiver, providing a unit for communicating with various other devices on the transmission medium, and these transmission media include wireless channels, wired channels, optical fiber cables, and other transmission media. For different user devices, the user interface 1814 can also be an interface capable of externally connecting or internally connecting required devices, and the connected devices include but are not limited to keypads, displays, speakers, microphones, joysticks, etc.

[0334] The processor 1813 is responsible for managing the bus architecture and general processing, and the memory 1811 can store the data used by the processor 1813 when executing operations.

[0335] Optionally, the processor can be a CPU, ASIC, FPGA, or CPLD, and the processor can also adopt a multi-core architecture. The processor and the memory can also be physically separated.

[0336] The processor 1813 reads the computer program in the memory 1811 and performs the following operations:

[0337] Receive a MAC CE from a network device, where the MAC CE is used to explicitly or implicitly activate or deactivate the TCI of a candidate cell;

[0338] Activate or deactivate the TCI of the candidate cell according to the MAC CE;

[0339] Among them, the explicit method adopted includes:

[0340] The MAC CE carries indication information for activating or deactivating the TCI of the target candidate cell;

[0341] The implicit method adopted includes:

[0342] Activate or deactivate the TCI of the target candidate cell according to the set MAC CE; or,

[0343] The cell identification information of at least one candidate cell is carried in the MAC CE, which is used to activate the TCI of at least one candidate cell.

[0344] In some embodiments, the indication information corresponds to the target candidate cell, and the indication information is used to indicate the activation or deactivation of all TCIs in the MAC CE for the target candidate cell, or the indication information is used to indicate the activation or deactivation of the TCI corresponding to the identification information of the TCI carried in the MAC CE for the target candidate cell.

[0345] In some embodiments, the indication information corresponds to the TCI code point, and the indication information is used to indicate the activation or deactivation of the TCI corresponding to the TCI code point.

[0346] In some embodiments, the types of TCI code points include uplink TCI code points, downlink TCI code points, or combined TCI code points.

[0347] In some embodiments, if the indication information corresponds to the TCI code point, the indication information is carried in N consecutive idle bit positions in the MAC CE;

[0348] wherein the value of N depends on the number of TCI code points indicated in the MAC CE; or,

[0349] The maximum value of N is 8 or 16.

[0350] In some embodiments, the order of appearance of the indication information in N consecutive idle bit positions in the MAC CE is consistent with the order of appearance of the corresponding uplink TCI code point, downlink TCI code point, or combined TCI code point, and the indication information is used to indicate whether the state of the TCI code point corresponding to the indication information is the active state or the deactivated state.

[0351] In some embodiments, the value of the indication information for activation is different from the value of the indication information for deactivation.

[0352] In some embodiments, the set MAC CE includes:

[0353] The sub-header of the MAC CE indicates that the length of the MAC CE is the set length, and the length of the MAC CE corresponds to the set length.

[0354] In some embodiments, the set length is 2 bytes or 1 byte.

[0355] In some embodiments, if the MAC CE does not contain the status identification information of the TCI, the MAC CE is used to deactivate all TCIs in the MAC CE for the target candidate cell.

[0356] In some embodiments, if the MAC CE only contains the identification information of the logical channel, the MAC CE is used to deactivate the TCI of the candidate cell corresponding to the identification information of the logical channel.

[0357] In some embodiments, when the cell identification information of at least one candidate cell is carried in the MAC CE, it further includes at least one of the following:

[0358] At least one TCI code point corresponding to the cell identification information of each candidate cell, and one TCI code point corresponds to the status identification information of an uplink TCI, the status identification information of a downlink TCI, or the status identification information of a combined TCI;

[0359] The status identification information of the TCI corresponding to the TCI code point carried in a separate control domain, and the status identification information indicates the number of TCIs corresponding to the TCI code point, or indicates the TCI mode corresponding to the TCI code point, and the TCI mode includes an uplink and downlink combined mode or an uplink and downlink separate mode;

[0360] For the case of separately indicating the status of the uplink TCI and the status of the downlink TCI, the status identification information of the TCI corresponding to the TCI code point carried in a separate indication domain, and the status identification information is the status identification information of the uplink TCI or the status identification information of the downlink TCI.

[0361] In some embodiments, the status of the TCI corresponding to the cell identification information carried in the MAC CE received at the first moment is the active state, and the first moment is the latest moment when the MAC CE is received.

[0362] In some embodiments, if the MAC CE is received at the second moment, and the cell identification information carried in the MAC CE is not included in the cell identification information carried in the MAC CE received at the first moment, then the status of the TCI corresponding to the cell identification information carried in the MAC CE received at the second moment is the deactivated state, where the second moment is before the first moment;

[0363] And / or;

[0364] If the cell identification information carried in the MAC CE received at the second moment is the same as the cell identification information carried in the MAC CE received at the first moment, and the TCIs corresponding to the same cell identification information are the same, then the status of the same TCI corresponding to the same cell identification information is the active state.

[0365] It should be noted here that the above device provided by the embodiments of the present invention can implement all the method steps implemented by the above method embodiments, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments will not be specifically described in this embodiment.

[0366] In some embodiments, a non-transitory readable storage medium is further provided. The non-transitory readable storage medium stores a computer program, and the computer program is used to cause a processor to execute the method according to any one of the method embodiments.

[0367] The non-transitory readable storage medium may be any available medium or data storage device accessible by the processor, including but not limited to magnetic memories (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical memories (such as CDs, DVDs, BDs, HVDs, etc.), and semiconductor memories (such as ROMs, EPROMs, EEPROMs, non-volatile memories (NAND FLASH), solid state drives (SSD), etc.).

[0368] In some embodiments, a computer program product is provided, including a computer program, and the computer program is used to cause a processor to execute the method according to any one of the method embodiments.

[0369] Those skilled in the art should understand that the embodiments of the present application may be provided as a method, a system, or a computer program product. Therefore, the present application may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memories and optical memories, etc.) containing computer-usable program code.

[0370] The present application is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or block in the flowcharts and / or block diagrams, and the combination of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate means for implementing the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0371] These processor-executable instructions can also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the processor-readable memory generate a manufactured article including instruction means, and the instruction means implements the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0372] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to include these modifications and variations.

Claims

1. A transmission configuration indicator (TCI) processing method, characterized in that Applied to a network device, the TCI processing method includes: Sending a Media Access Control Control Element (MAC CE) to a terminal device, where the MAC CE is used to explicitly or implicitly activate or deactivate the TCI of a candidate cell; Among them, the explicit method includes: The MAC CE carries indication information for activating or deactivating the TCI of a target candidate cell; The implicit method includes: Activating or deactivating the TCI of a target candidate cell according to a set MAC CE; or, The MAC CE carries cell identification information of at least one candidate cell for activating the TCI of the at least one candidate cell.

2. The TCI processing method according to claim 1, characterized in that, The indication information corresponds to the target candidate cell, and the indication information is used to indicate activating or deactivating all TCIs in the MAC CE for the target candidate cell; or, The indication information corresponds to a TCI code point, and the indication information is used to indicate whether the state of the TCI code point corresponding to the indication information is an active state or a deactivated state.

3. The TCI processing method according to claim 2, wherein, If the indication information corresponds to the target candidate cell, the indication information is carried in the idle bit positions in the MAC CE; If the indication information corresponds to a TCI code point, the indication information is carried in N consecutive idle bit positions in the MAC CE, and the value of N depends on the number of TCI code points indicated in the MAC CE.

4. The TCI processing method according to claim 3, wherein The types of the TCI code points include uplink TCI code points, downlink TCI code points, or combined TCI code points.

5. The TCI processing method according to claim 4, wherein The order in which the indication information appears in N consecutive idle bit positions in the MAC CE is the same as the order in which the corresponding uplink TCI code point, downlink TCI code point, or combined TCI code point appears.

6. The TCI processing method according to any one of claims 1 to 5, characterized in that, The value of the indication information for activation is different from the value of the indication information for deactivation.

7. The TCI processing method according to any one of claims 1 to 6, characterized in that The set MAC CE includes: The sub-header of the MAC CE indicates that the length of the MAC CE is a set length, and the length of the MAC CE corresponds to the set length.

8. The TCI processing method according to claim 7, wherein The set length is 2 bytes or 1 byte.

9. The TCI processing method according to any one of claims 1 to 8, characterized in that, If the MAC CE does not contain TCI status identification information, the MAC CE is used to deactivate all TCIs in the MAC CE for the target candidate cell.

10. The TCI processing method according to any one of claims 1 to 9, characterized in that, When the MAC CE carries cell identification information of at least one candidate cell, it further includes at least one of the following: At least one TCI code point corresponding to the cell identification information of each candidate cell, and one TCI code point corresponds to a status identification information of an uplink TCI, a status identification information of a downlink TCI, or a status identification information of a combined TCI; The status identification information of the TCI corresponding to the TCI code point carried in a separate control field, where the status identification information indicates the number of TCIs corresponding to the TCI code point, or indicates the TCI mode corresponding to the TCI code point, and the TCI mode includes an uplink and downlink combined mode or an uplink and downlink separate mode; For the case of separately indicating the status of uplink TCI and the status of downlink TCI, the status identification information of the TCI corresponding to the TCI code point carried in a separate indication field, where the status identification information is the status identification information of uplink TCI or the status identification information of downlink TCI.

11. A TCI processing method, characterized in that, Applied to a terminal device, the TCI processing method includes: Receiving a MAC CE from a network device, where the MAC CE is used to explicitly or implicitly activate or deactivate the TCI of a candidate cell; Activating or deactivating the TCI of the candidate cell according to the MAC CE; Among them, the explicit method adopted includes: The MAC CE carries indication information for activating or deactivating the TCI of a target candidate cell; The implicit method adopted includes: Activating or deactivating the TCI of a target candidate cell according to a set MAC CE; or, The MAC CE carries the cell identification information of at least one candidate cell for activating the TCI of the at least one candidate cell.

12. The TCI processing method according to claim 11, wherein The indication information corresponds to the target candidate cell, and the indication information is used to indicate activating or deactivating all the TCIs in the MAC CE for the target candidate cell, or the indication information is used to indicate activating or deactivating the TCI corresponding to the identification information of the TCI carried in the MAC CE for the target candidate cell.

13. The TCI processing method according to claim 11 or 12, characterized in that, The indication information corresponds to a TCI code point, and the indication information is used to indicate activating or deactivating the TCI corresponding to the TCI code point.

14. The TCI processing method according to claim 13, wherein The types of the TCI code points include uplink TCI code points, downlink TCI code points, or combined TCI code points.

15. The TCI processing method according to claim 14, wherein If the indication information corresponds to a TCI code point, the indication information is carried in N consecutive idle bit positions in the MAC CE; Among them, the value of N depends on the number of TCI code points indicated in the MAC CE; or, The maximum value of N is 8 or 16.

16. The TCI processing method according to claim 15, wherein The order of appearance of the indication information in N consecutive idle bit positions in the MAC CE is the same as the order of appearance of the corresponding uplink TCI code point, downlink TCI code point, or combined TCI code point, and the indication information is used to indicate that the status of the TCI code point corresponding to the indication information is the active state or the deactivated state.

17. The TCI processing method according to any one of claims 11 to 16, characterized in that, The value of the indication information for activation is different from the value of the indication information for deactivation.

18. The TCI processing method according to any one of claims 11 to 17, characterized in that, The set MAC CE includes: The sub-header of the MAC CE indicates that the length of the MAC CE is a set length, and the length of the MAC CE corresponds to the set length.

19. The TCI processing method according to claim 18, wherein, The set length is 2 bytes or 1 byte.

20. The TCI processing method according to any one of claims 11 to 19, characterized in that, If the MAC CE does not contain the status identification information of the TCI, the MAC CE is used to deactivate all the TCIs in the MAC CE for the target candidate cell.

21. The TCI processing method according to any one of claims 11 to 20, characterized in that, If the MAC CE only contains the identification information of a logical channel, the MAC CE is used to deactivate the TCI of the candidate cell corresponding to the identification information of the logical channel.

22. The TCI processing method according to any one of claims 11 to 21, characterized in that, When the MAC CE carries the cell identification information of at least one candidate cell, it further includes at least one of the following: At least one TCI code point corresponding to the cell identification information of each candidate cell, where one TCI code point corresponds to the status identification information of an uplink TCI, the status identification information of a downlink TCI, or the status identification information of a combined TCI; The status identification information of the TCI corresponding to the TCI code point carried in a separate control field, where the status identification information indicates the number of TCIs corresponding to the TCI code point, or indicates the TCI mode corresponding to the TCI code point, and the TCI mode includes an uplink-downlink combined mode or an uplink-downlink separate mode; For the case of separately indicating the status of the uplink TCI and the status of the downlink TCI, the status identification information of the TCI corresponding to the TCI code point carried in a separate indication field, where the status identification information is the status identification information of the uplink TCI or the status identification information of the downlink TCI.

23. The TCI processing method according to claim 22, characterized in that, The status of the TCI corresponding to the cell identification information carried in the MAC CE received at the first moment is the active state, and the first moment is the latest moment when the MAC CE is received.

24. The TCI processing method according to claim 23, wherein, If the MAC CE is received at the second moment, and the cell identification information carried in the MAC CE is not included in the cell identification information carried in the MAC CE received at the first moment, then the status of the TCI corresponding to the cell identification information carried in the MAC CE received at the second moment is the deactivated state, where the second moment is before the first moment; And / or; If the cell identification information carried in the MAC CE received at the second moment is the same as the cell identification information carried in the MAC CE received at the first moment, and the TCIs corresponding to the same cell identification information are the same, then the status of the same TCI corresponding to the same cell identification information is the active state.

25. A TCI processing device, characterized in that, Applied to a network device, the TCI processing device includes: A sending module, configured to send a MAC CE to a terminal device, where the MAC CE is used to explicitly or implicitly activate or deactivate the TCI of a candidate cell; Among them, the manner adopted by the explicit method includes: The MAC CE carries indication information for activating or deactivating the TCI of a target candidate cell; The manner adopted by the implicit method includes: Activating or deactivating the TCI of a target candidate cell according to a set MAC CE; or, The MAC CE carries the cell identification information of at least one candidate cell, for activating the TCI of the at least one candidate cell.

26. A TCI processing device, characterized in that, Applied to a terminal device, the TCI processing device includes: A receiving module, configured to receive a MAC CE from a network device, where the MAC CE is used to explicitly or implicitly activate or deactivate the TCI of a candidate cell; A processing module, configured to activate or deactivate the TCI of a candidate cell according to the MAC CE; Among them, the manner adopted by the explicit method includes: The MAC CE carries indication information for activating or deactivating the TCI of a target candidate cell; The manner adopted by the implicit method includes: Activating or deactivating the TCI of a target candidate cell according to a set MAC CE; or, The cell identity information of at least one candidate cell is carried in the MAC CE, which is used to activate the TCI of the at least one candidate cell.

27. A TCI processing device, characterized in that, It includes: A memory, a transceiver, a processor: The memory is used to store computer programs; The transceiver is used to send and receive data under the control of the processor; The processor is used to read the computer program in the memory and perform the following operations: Send a MAC CE to the terminal device, where the MAC CE is used to explicitly or implicitly activate or deactivate the TCI of the candidate cell; Among them, the explicit method includes: The MAC CE carries indication information for activating or deactivating the TCI of the target candidate cell; The implicit method includes: According to the set MAC CE, activate or deactivate the TCI of the target candidate cell; or, The cell identity information of at least one candidate cell is carried in the MAC CE, which is used to activate the TCI of the at least one candidate cell.

28. The TCI processing device according to claim 27, characterized in that, The indication information corresponds to the target candidate cell, and the indication information is used to indicate the activation or deactivation of all TCIs in the MAC CE for the target candidate cell; or, The indication information corresponds to the TCI code point, and the indication information is used to indicate whether the state of the TCI code point corresponding to the indication information is the active state or the deactivated state.

29. The TCI processing device according to claim 28, wherein If the indication information corresponds to the target candidate cell, the indication information is carried in the idle bit positions in the MAC CE; If the indication information corresponds to the TCI code point, the indication information is carried in N consecutive idle bit positions in the MAC CE, and the value of N depends on the number of TCI code points indicated in the MAC CE.

30. The TCI processing device according to claim 29, wherein The types of the TCI code points include uplink TCI code points, downlink TCI code points or combined TCI code points.

31. The TCI processing device according to claim 30, wherein, The order of appearance of the indication information in N consecutive idle bit positions in the MAC CE is the same as the order of appearance of the corresponding uplink TCI code point, downlink TCI code point or combined TCI code point.

32. The TCI processing device according to any one of claims 27 to 31, characterized in that, The value of the indication information for activation is different from the value of the indication information for deactivation.

33. The TCI processing device according to any one of claims 27 to 32, characterized in that, The set MAC CE includes: The sub-header of the MAC CE indicates that the length of the MAC CE is the set length, and the length of the MAC CE corresponds to the set length.

34. The TCI processing device according to claim 33, characterized in that, The set length is 2 bytes or 1 byte.

35. The TCI processing device according to any one of claims 27 to 34, characterized in that, If the MAC CE does not contain the status identification information of the TCI, the MAC CE is used to deactivate all TCIs in the MAC CE for the target candidate cell.

36. The TCI processing device according to any one of claims 27 to 35, characterized in that, When the cell identity information of at least one candidate cell is carried in the MAC CE, it further includes at least one of the following: At least one TCI code point corresponding to the cell identity information of each candidate cell, and one TCI code point corresponds to the status identification information of an uplink TCI, the status identification information of a downlink TCI or the status identification information of a combined TCI; The status identification information of the TCI corresponding to the TCI code point carried in a separate control domain, where the status identification information indicates the number of TCIs corresponding to the TCI code point, or indicates the TCI mode corresponding to the TCI code point, and the TCI mode includes an uplink-downlink combined mode or an uplink-downlink separate mode; For the case of separately indicating the status of the uplink TCI and the status of the downlink TCI, the status identification information of the TCI corresponding to the TCI code point carried in a separate indication domain, where the status identification information is the status identification information of the uplink TCI or the status identification information of the downlink TCI.

37. A TCI processing device, characterized in that, Comprising: A memory, a transceiver, a processor: The memory is used to store computer programs; The transceiver is used to transmit and receive data under the control of the processor; The processor is used to read the computer programs in the memory and perform the following operations: Receive a MAC CE from a network device, where the MAC CE is used to explicitly or implicitly activate or deactivate the TCI of a candidate cell; Activate or deactivate the TCI of the candidate cell according to the MAC CE; Wherein, the manner adopted for explicit activation or deactivation includes: The MAC CE carries indication information for activating or deactivating the TCI of a target candidate cell; The manner adopted for implicit activation or deactivation includes: Activate or deactivate the TCI of a target candidate cell according to a set MAC CE; or, The MAC CE carries cell identification information of at least one candidate cell for activating the TCI of the at least one candidate cell.

38. The TCI processing device according to claim 37, wherein The indication information corresponds to the target candidate cell, and the indication information is used to indicate activating or deactivating all TCIs in the MAC CE for the target candidate cell, or the indication information is used to indicate activating or deactivating the TCI corresponding to the identification information of the TCI carried in the MAC CE for the target candidate cell.

39. The TCI processing device according to claim 37 or 38, characterized in that, The indication information corresponds to a TCI code point, and the indication information is used to indicate activating or deactivating the TCI corresponding to the TCI code point.

40. The TCI processing device according to claim 39, wherein The type of the TCI code point includes an uplink TCI code point, a downlink TCI code point, or a combined TCI code point.

41. The TCI processing device according to claim 40, wherein, If the indication information corresponds to a TCI code point, the indication information is carried in N consecutive idle bit positions in the MAC CE; Wherein, the value of N depends on the number of TCI code points indicated in the MAC CE; or, The maximum value of N is 8 or 16.

42. The TCI processing device according to claim 41, wherein, The order of appearance of the indication information in N consecutive idle bit positions in the MAC CE is the same as the order of appearance of the corresponding uplink TCI code point, downlink TCI code point, or combined TCI code point, and the indication information is used to indicate whether the status of the TCI code point corresponding to the indication information is an active state or a deactivated state.

43. The TCI processing device according to any one of claims 37 to 42, characterized in that, The value of the indication information for activation is different from the value of the indication information for deactivation.

44. The TCI processing device according to any one of claims 37 to 43, characterized in that, The set MAC CE includes: The sub-header of the MAC CE indicates that the length of the MAC CE is a set length, and the length of the MAC CE corresponds to the set length.

45. The TCI processing device according to claim 44, wherein, The set length is 2 bytes or 1 byte.

46. The TCI processing device according to any one of claims 37 to 45, characterized in that, If the MAC CE does not contain the status identification information of the TCI, the MAC CE is used to deactivate all TCIs in the MAC CE for the target candidate cell.

47. The TCI processing device according to any one of claims 37 to 46, characterized in that, If the MAC CE only contains the identification information of the logical channel, the MAC CE is used to deactivate the TCI of the candidate cell corresponding to the identification information of the logical channel.

48. The TCI processing device according to any one of claims 37 to 47, characterized in that, When the cell identification information of at least one candidate cell is carried in the MAC CE, it further includes at least one of the following: At least one TCI code point corresponding to the cell identification information of each candidate cell, where one TCI code point corresponds to the status identification information of an uplink TCI, the status identification information of a downlink TCI, or the status identification information of a combined TCI; The status identification information of the TCI corresponding to the TCI code point carried in a separate control field, where the status identification information indicates the number of TCIs corresponding to the TCI code point, or indicates the TCI mode corresponding to the TCI code point, and the TCI mode includes an uplink-downlink combined mode or an uplink-downlink separate mode; For the case of separately indicating the status of the uplink TCI and the status of the downlink TCI, the status identification information of the TCI corresponding to the TCI code point carried in a separate indication field, where the status identification information is the status identification information of the uplink TCI or the status identification information of the downlink TCI.

49. The TCI processing device according to claim 48, wherein, The status of the TCI corresponding to the cell identification information carried in the MAC CE received at the first moment is the active state, and the first moment is the latest moment when the MAC CE is received.

50. The TCI processing device according to claim 49, characterized in that, If the MAC CE is received at the second moment, and the cell identification information carried in the MAC CE is not included in the cell identification information carried in the MAC CE received at the first moment, then the status of the TCI corresponding to the cell identification information carried in the MAC CE received at the second moment is the deactivated state, where the second moment is before the first moment; And / or; If the cell identification information carried in the MAC CE received at the second moment is the same as the cell identification information carried in the MAC CE received at the first moment, and the TCIs corresponding to the same cell identification information are the same, then the status of the same TCI corresponding to the same cell identification information is the active state.

51. A non-transitory readable storage medium, characterized in that, The non-transitory readable storage medium stores a computer program, and the computer program is used to cause the processor to execute the method according to any one of claims 1 to 24.

Images